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Nguyễn Lan Anb
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Đặng Thị Phương Thảo
25 tháng 1 2017 lúc 9:17

a, (a+b).(a+b)

=a2+ab+ab+b2

=a2+2ab+b2

Đặng Thị Phương Thảo
25 tháng 1 2017 lúc 9:18

b,(a-b).(a-b)

=a2-ab-ab+b2

=a2-2ab+b2

Guinevere
25 tháng 1 2017 lúc 9:18

a) (a+b).(a+b)=(a+b)2

a) (a-b).(a-b)=(a-b)2

Ly thi mai
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Ngô Thị Anh Minh
19 tháng 2 2017 lúc 22:12

1. is reading

2. isn't listening

3. is coming

Trần Thị Hiền
19 tháng 2 2017 lúc 23:04

1. is reading

2. isn't listening

3. is coming

Hải Ninh
19 tháng 2 2017 lúc 23:24

1. is reading

2. isn't listening

3. is coming

Nguyễn Thái An
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Phương Dung
13 tháng 12 2020 lúc 11:02

Câu 1. Chia động từ trong ngoặc ở thì hiện tại đơn và hiện tại tiếp diễn.

1. Trung is having a big breakfast this morning. He eats a leaf of bread and 2 eggs.

2.  At the moment, Toan is sitting in Dr Thanh's sugery. She is checking has teeth  .    

3. How often does your uncle visit the museum ? He goes there twice a year.

4. Lan's father is an architet but he isn't working at the moment.

5. Minh needs a phone card because he wants to phone his parents.

6. Tuan goes to the amusement center twice a week. He likes playing game very much at the moment.

7. Mr Khanh usually drinks tea but today he is drinking coffee.

8. It often takes me 20 minutes to walk to school.

Simp shoto không lối tho...
13 tháng 12 2020 lúc 11:04

Chia động từ trong ngoặc ở thì hiện tại đơn và hiện tại tiếp diễn.

1. Trung ( have ) has a big breakfast this morning. He ( eat ) eats a leaf of bread and 2 eggs.

2.  At the moment, Toan ( sit ) is sitting in Dr Thanh's sugery. She ( check ) is checking has teeth  .    

3. How often does your uncle ( visit ) visit the museum ? He ( go ) goes there twice a year.

4. Lan's father is an architet but he ( not work ) isn't working at the moment.

5. Minh ( need ) needs a phone card because he ( want )wants to phone his parents.

6. Tuan ( go) goes to the amusement center twice a week. He ( like ) likes playing game very much at the moment.

7. Mr Khanh usually ( drink ) drinks tea but today he ( drink )is drinking coffee.

 

8. It often ( take ) takes me 20 minutes to walk to school.

 

Lê Trang
13 tháng 12 2020 lúc 11:11

Chia động từ trong ngoặc ở thì hiện tại đơn và hiện tại tiếp diễn.

1. Trung ( have ) .......had.... a big breakfast this morning. He ( eat ) ........ate...... a leaf of bread and 2 eggs.

(Mình nghĩ câu này nên dùng thì QKĐ chứ nhỉ. Vì có this morning - sáng nay)

2.  At the moment, Toan ( sit ) ........is sitting....... in Dr Thanh's sugery. She ( check ) .....is checking....... has teeth  .    

3. How often .....does...... your uncle ( visit ) ........visit.......... the museum ? He ( go ) .........goes....... there twice a year.

4. Lan's father is an architet but he ( not work ) ......isn't working....... at the moment.

5. Minh ( need ) .......needs...... a phone card because he ( want ) ......wants........ to phone his parents.

6. Tuan ( go) ......goes...... to the amusement center twice a week. He ( like ) .......likes..... playing game very much at the moment.

7. Mr Khanh usually ( drink ) ......drinks...... tea but today he ( drink ) is drinking coffee.

8. It often ( take ) .......takes...... me 20 minutes to walk to school.

Lê nguyễn hồng thanh
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Đặng Yến Ngọc
10 tháng 11 2018 lúc 20:35

1.is reading

2.travel

3.student ko có ''s''=>do,nếu bạn viết thiếu thì là does

4.find

5.is watching

6.are reading

7.won't come

8.is playing

9.goes

10.are you going

11.studies

12.fix

13.are doing

14.will be

15.drawing

hk tốt

Nguyễn Lê Huỳnh Hương
10 tháng 11 2018 lúc 20:41

1.is reading               7.won't come            13.is doing

2.travel                     8.is playing                14.will be

3.go                          9.goes                       15.drawing

4.find                        10.is......going            

5.watches                 11.studies

6.read                       12.fixes

GOOD LUCK !

๛Ňɠũ Vị Čáէツ
10 tháng 11 2018 lúc 20:44

1.My father (read)..is reading....a newpaper now

2.my mother will (travel)...travel....to Nha Trang next week

3.Student often (go)..goes....to the school cafeteria at lunchtime

  ( Nếu "student" có "s" thì go giữ nguyên )

4. You can (find)...find...math book on the rack in the middle

  ( Sau "can" động từ giữ nguyên )

5.My brother (watch)...is watching .........T.V at the moment

6.Lan and Hoa (read).....are reading...... books in the library at the moment

7. We (not/come)...won't  come.........here tommorow

8.Listen! The girl (play)..is playing......Piano

"Listen!"  trong câu trên là dấu hiệu của thì hiện tại tiếp diễn)

9.Nam (go)....goes.......to the Artist Club every day

10.What (be)..are......you (go)...going......now?

11.She (study)...studies.....map in Georaphy lesson

12. Ba can (fix)...fix......the washing machine

13.They (do)...are doing.....some experiment at the moment

14. You (be)...will be... a famous singer one day

15.He enjoys (draw)...drawing.... picture

    !!!

Thư Nguyễn Nguyễn
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Nguyễn Thị Hồng Quý
5 tháng 8 2016 lúc 21:05

1. Trung ( have ) has a big breakfast this morning. He ( eat ) eats a leaf of bread and 2 eggs.

2.  At the moment, Toan ( sit ) is sitting in Dr Thanh's sugery. She ( check ) .is checking has teeth  .    

3. How often does your uncle ( visit ) visit the museum ? He ( go ) goes. there twice a year.

4. Lan's father is an architet but he ( not work )isn't working at the moment.

5. Minh ( need ) needs a phone card because he ( want ) wants to phone his parents.

6. Tuan ( go) goes to the amusement center twice a week. He ( like ) likes playing game very much at the moment.

7. Mr Khanh usually ( drink )drinks tea but today he ( drink ) drinkscoffee.

8. It often ( take ) takes me 20 minutes to walk to school.

9. Students in the USA ( not wear ) don't wear uniform .

10. We ( rehearse ) .are rehearsing a play at present.

ncjocsnoev
5 tháng 8 2016 lúc 21:16

1. Trung ( have ) has a big breakfast this morning. He ( eat ) eats a leaf of bread and 2 eggs.

2.  At the moment, Toan ( sit ) is sitting in Dr Thanh's sugery. She ( check ) .is checking has teeth  .    

3. How often does your uncle ( visit ) visit the museum ? He ( go ) goes. there twice a year.

4. Lan's father is an architet but he ( not work )isn't working at the moment.

5. Minh ( need ) needs a phone card because he ( want ) wants to phone his parents.

6. Tuan ( go) goes to the amusement center twice a week. He ( like ) likes playing game very much at the moment.

7. Mr Khanh usually ( drink )drinks tea but today he ( drink ) drinkscoffee.

8. It often ( take ) takes me 20 minutes to walk to school.

9. Students in the USA ( not wear ) don't wear uniform .

10. We ( rehearse ) .are rehearsing a play at present.

Nguyễn Thùy Dương
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Lê Nguyên Hạo
5 tháng 8 2016 lúc 21:09

1. Trung ( have ) .......has.... a big breakfast this morning. He ( eat ) ......eats........ a leaf of bread and 2 eggs.

2.  At the moment, Toan ( sit ) ......is sitting......... in Dr Thanh's sugery. She ( check ) .....is checking....... has teeth  .    

3. How often .....does...... your uncle ( visit ) ........visit.......... the museum ? He ( go ) .........goes....... there twice a year.

4. Lan's father is an architet but he ( not work ) ....isn't working......... at the moment.

5. Minh ( need ) .....needs........ a phone card because he ( want ) .......wants....... to phone his parents.

6. Tuan ( go) ...goes......... to the amusement center twice a week. He ( like ) ......likes...... playing game very much at the moment.

7. Mr Khanh usually ( drink ) .....drinks....... tea but today he ( drink ) is drinking coffee.

8. It often ( take ) ......takes....... me 20 minutes to walk to school.

9. Students in the USA ( not wear ) ...don't wear........ uniform .

10. We ( rehearse ) .........are rehearsing........... a play at present.

ncjocsnoev
5 tháng 8 2016 lúc 21:13

 

Câu 1. Chia động từ trong ngoặc ở thì hiện tại đơn và hiện tại tiếp diễn.

1. Trung will have a big breakfast this morning. He eats a leaf of bread and 2 eggs.

2.  At the moment, Toan is sitting in Dr Thanh's sugery. She is checking has teeth  .    

3. How often does your uncle visit the museum ? He goes there twice a year.

4. Lan's father is an architet but he isn't working at the moment.

5. Minh needs a phone card because he wants to phone his parents.

6. Tuan goes to the amusement center twice a week. He likes playing game very much at the moment.

7. Mr Khanh usually drinks tea but today he is drinking coffee.

8. It often takes me 20 minutes to walk to school.

9. Students in the USA don't wear uniform .

10. We are rehearsing a play at present.

Trương Thị Phước Thảo
6 tháng 8 2016 lúc 8:01

1. Trung ( have ) will have........... a big breakfast this morning. He ( eat ) ..eats............ a leaf of bread and 2 eggs.

2.  At the moment, Toan ( sit )is sitting ............... in Dr Thanh's sugery. She ( check ) .....is checking....... has teeth  .    

3. How often ..does......... your uncle ( visit ) .visit ................. the museum ? He ( go ) .....goes........... there twice a year.

4. Lan's father is an architet but he ( not work )isn't working ............. at the moment.

5. Minh ( need ) .needs ............ a phone card because he ( want ) wants.............. to phone his parents.

6. Tuan ( go) ...goes......... to the amusement center twice a week. He ( like ) ...likes........ playing game very much at the moment.

7. Mr Khanh usually ( drink ) .drinks........... tea but today he is drinking ( drink ) coffee.

8. It often ( take )takes ............. me 20 minutes to walk to school.

9. Students in the USA ( not wear ) don't wear  ........... uniform .

10. We ( rehearse ) are rehearsing.................... a play at present.

Mai Phương Bùi
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Sơn Phạm Thái
17 tháng 9 2019 lúc 22:04

1. am reading

2. watch

3. talk

4. are playing

5. doesn't go shopping

nhớ tick mik nhé :)

Vũ Minh Tuấn
17 tháng 9 2019 lúc 22:32

1.Chia động từ trong ngoặc

1. I ( read)....am reading.... an interesting novel at the moment

2. Do you usually (watch)....watch.....TV in the evening?

3.They always (talk)....talk....to each other in the weekend

4. They (play)...are playing....soccer at the moment.

5.She often ( not go ).....doesn't go....(shop)....shopping... on weekend.

Chúc bạn học tốt!

Rosie
19 tháng 9 2019 lúc 21:36

1.am reading

2.Do..... watch

3.talk

4.are playing

5.doesn't go/ shopping

Lê Thu Hà
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Murad M-TP Thần Tượng Họ...
28 tháng 10 2018 lúc 19:55

We ( meet ) meet each other twice a month

He ( listen ) is listening to the telephone at the moment

They always ( not go ) not go to the school by train

He ( drink ) drinking beer at the bar at the moment

They usually ( sing ) sing in the early morning

Trà My
28 tháng 10 2018 lúc 20:11

Give the corect verb forms : Present simple or present continuous tenses :

We ( meet ) ......MEET.... each other twice a month .

He ( listen ) .....IS LISTENING..... to the telephone at the moment .

They DON'T always ( not go ) ..GO........ to the school by train .

He ( drink ) .....IS DRINKING..... beer at the bar at the moment .

They usually ( sing ) ....SING...... in the early morning .

tôi là ai ?
28 tháng 10 2018 lúc 21:11

We meet each other twice a month.

He is listen to the telephone at the moment.

They always don't go to the school by train.

He is drink beer at the bar at the moment.

They usually sing in the early morning.

Mk chắc chắn đúng

Heartilia Hương Trần
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Đức Minh
15 tháng 10 2016 lúc 20:26

1. rains

2. isn't being

3. won't go

Adorable Angel
16 tháng 10 2016 lúc 7:42

1. It is rains very much in the summer.

2. Lan isn't in her room at the moment.

3. She isn't goes to the movies theater tomorrow evening.

Nguyễn Thị Huyền
15 tháng 10 2016 lúc 20:31

1. It (rain) rains .very much in the summer.

2. Lan (not be) isn't being  in her room at the moment.

3. She (not go) won't go  to the movie theater tomorow evening.