a) He rang the bell white Tom was taking a bath.

b) I was very tired because I worked all day yesterday.

c) He was sitting in a cafe when I saw him.

\(a,b\ge0\)\(\Rightarrow M=\frac{ab}{a+b+2}\ge0\)

Dấu "=" xảy ra khi \(\left(a,b\right)=\left(0;2\right);\left(2;0\right)\)

1. He won't be back until Monday.

2. She can neither speaks nor hears.

The black car is the same price as the red one .                                                          -> The red one is as cheap/expensive as the black car.

Our school is famous. Your school is famous too.                                                    -- -> Both our school and your school are famous.

They didn't go to the cinema because of his sickness.                                               -> Because he was sick, they didn't go to the cinema.

It's a good idea to eat a lot of fruit and vegetables everyday.                                    - > We should eat a lot of fruit and vegetables everyday.

1.      A. minority            B. literacy        C. primary         D. library

2.      A. eradicate          B. campaign    C. vacation       D. transport

3.      A. straggle            B. maturity       C. student        D. education

4.      A. please              B. decrease      C. speech       D. realistic

5.      A. ethnic               B. northern      C. healthy        D. south

1) My mother works in a hospital.

Where does your mother work ?

2) When Lan going to play football.

...................Xin bạn ghi lại câu hỏi......................

3) My sister is an engineer.

What is your sister job ?

4) Nam got up late because he stayed up late to watching TV last night.

Why did Nam get up late ?

5) Hung is 1,3 meter tall.

What's Hung height ?

6) My father travel to works by car everyday.

How does your father travel to work everyday ?

7) Yes, playing computer games is not good for student. 

Is playing computer game not good for student ?

8) Tam visited Hoi An last year.

When did Tam visit Hoi An ?

9) These books are 40.000 dong

How much are these books ?

10) No, thank. I don't like milk.

Would you like some milk ?

My sisiter didn't go to school yesterday because she of her sickness

_ My sister didn't go to school yesterday because she was sick

You'll get flu if you don't wash your hand more

-> Wash your hand more or you'll get flu

I began working for Go Green five moths ago

-> I have worked for Go Green for five months

He missed the first bus because he got up late

-> If he hadn't got up late, he wouldn't have missed the first bus.

money hay exchange ?

Tourist

_First Answer_

2/7 chiều dài là :

70 x 2/7 = 20 ( m )

Chiều rộng mảnh đất là :

20 x 100 : 40 = 50 ( m )

Chu vi mảnh đất là :

( 70 + 50 ) x 2 = 240 ( m)

Diện ticha mảnh đất là :

70 x 50 = 3500 ( m2 )

        Đáp số : .......