Trong tích A có chứa thừa số \(\left(\frac{3^6}{9}-81\right)=\left(\frac{3^6}{3^2}-81\right)=0\) nên A = 0 

bn ns rõ hơn đi

giúp mk với

Lan: What are you going To do this summer vacation?

Nam: I am going to visit Da Nang

Lan: How long are you going to stay?

Nam: I'm going to stay five days

Lan: Where are you going to stay?

Nam: I'm going to stay in a hotel

Lan: What are you going to do there?

Nam; I'm going to Hoi An ancient town and some of my friends as well

Read about jill green, then complete the questions.

Questions answers

a) what's her surname? green

b) What is her first name? jill

c) Where is she from? england

d) what's your job ? student

e) what's your address ? 14, north street, bristol

f) What is her telephone number ? 435 3124

g) How old is she? twenty one

1. I'm very glad (meet) to meet you again

2.I am learning how (play) to play chess

3.Don't let him (eat) to eat ice cream too much

4.Would you please (call) to call him?

5.Are you keen on (go)(ski) going skiing ?

6Don't forget (turn) of the TV before (go) going to bed

7.After (have) having diner, we often watch TV

8.Remember (check) to check your answer again

9How about (give) giving him some money?

10. I advise you (not get) not to get up too late.

Put the verb in bracket into the correct form.

1. All the students enjoy ( camp) camping on the weekend.

2. Look ! The teacher ( come) is coming here.

3. I ( try) am trying to do this math question now.

4.Let's ( wait) wait until the rain stop.

5. She enjoys ( listen) listening to music.

Ex1 : Khaonh vào từ có cách phát âm khác :

1 : A : worked B : played C : pleased D : lived

2 : A : cheap B : match C : chore D : machine

3 : A : safe B : nature C : face D: Japan

4 : A : seat B : great C : seaside D : beach

5 : A : heritage B : cottage C : luggage D : age

là ai vậy

1. When she came to my house this morning, i still slept => was sleeping

2. Is Fiona used to work late at the office? working

3. Does it take you three hours doing this task? => to do

Mk bt làm 3 câu này thôi

V .

(1) with

(2) from

(3) live

(4) than

(5) school

(6) it

(7) to

(8) by

(9) have

(10) misses

VI .

1. unhappy

2. bigger

3. talking

4. classroom

5. relation

VII .

1. d

2. g

3. j

4. a

5. h

6. c

7. i

8. e

9. b

10. f

IX .

H : Good morning

T : Nice to meet you again

H : Me too / Her name

T : Pleased to meet you

M : ...

T : Where 're

M : I'm from / I live with

T : What 's

M : ...

T : See you later

H&M : ...

X .

1. How far is it from Trang's house to the market ?

2. He lives with his grandparents on Hoang Quoc Viet street .

3. My old class doesn't have many students .

4. Who is Mrs Quyen talking to the boy ?

5. Hoa's old school is smaller than her new .

6. Mrs Hoang goes to work bby bus every day .

7. How is Minh's new house different from his old one ?

8. Nguyet is unhappy because she misses her parents .

9. Does Nhung have a lot of friends in her town ?

10. It's twelve o'clock and we' re going to the lunch room .