of

for

\(\sqrt{27+6}=\sqrt{33}\)

\(\sqrt{33}< \sqrt{48}\) 

1. Nam has a large _____collection______ of foreign stamps. (collect)

2. There are many kinds of ______entertainment____ for young people. (entertain)

Bài 2: Dùng dạng đúng của động từ trong ngoặc đơn:

1. (you/be) ________are you going to be__________ free next Sunday?

2. (you/look) _______what do you look__________ for Lan? I think she's reading in the library.

3. We (live) _____live___ near Nam's house, but we (not see) ______don't see______ him very often.

Bài 3: Chọn đáp án đúng:

1. Hung watches television _________ the time ( A: more;  B: most; C: most of; D: more of)

2. American teenagers _____________ eating in fast food restaurants. ( A: enjoy; B: want ; C: need; D: would like)

3. American hospital volunteers are called "candy stripers" because they wear striped pink and white _____________. ( A: dress; B:skirt; C:clothes; D: uniform)

MY FATHER (BUY)...has bought.......A VERY NICE BIKE FOR ME SINCE LAST WEEK

MY PARENTS (PREPARE).....prepare......MY BIRTHDAY TODAY

1.will you wait a minute while i (look)....am looking......... through the text ?

2. mai ( telephone ) .....will telehone.......... you when she comes back

3.thanks for (invite)........inviting..... me to the birthday party

4. i will send him the message as soon as he ( return)....returns......

5. a little girl can't spend all her time ( listen )....listening...... to stories

6. the waitress ( tell) ......told.... us to come back in two hours

TAỌ TỪ NHA MỌI NGƯỜI

1.every day, there are two ....flights...... from da nang to ho chi minh city (flY)                                                                                                                   2. there are many kind of ........entertainment...... for young people (entertain)                                                                                                                            3. pupils are very interested in outside class...activites..... (act)

1 we do experiment  in the physics class.

what do they do in the the physics class?

2 i sometimes play computer games in my free time 

what do you do in your freetime?

Tìm và sửa lỗi sai 

1those students are very good in English

in =>at

2Lan likes to learning experiment

learning =>learn

3 in geography, we study maps and learn about same countries

same =>different

4 Ba is very good a fix things

a =>at

5what does Nam usually does after school?

does =>do

6 we learn about books and write essays in Math 

math =>literature

Đổi: \(1,8^3=1800\) lít
Số lượng nước bể đang chứa:
\(1800:100\) x \(75\)\(=1350\) ( lít )
Đáp số: 1350 lít.