Điền vào chỗ trống dạng so sánh đúng của từ trong ngoặc :

1. He is ( clever ) ..........the cleverest............ student in my group.

2.she can't stay ( long ) ..........longer....... than 30 minutes.

3.it's ( good ) ............the best................... holiday i've had.

4. Well, the place looks ( clean ) ........cleaner....... now.

5. The red shirt is better our it's ( expensive)...............more expensive..................... than the white one.

47-5(10-x)=12

5(10-x)=47-12

5(10-x)=35

10-x=35:5

10-x=7

x=10-7

x=3

3.5.7.9.11.13.15= (3.5.7.9.13).(11.15)=165.(3.5.7.9.13) chia hết cho 165 

=> 3.5.7.9.11.13.15 chia hết cho 165

a.b = -23 

Mà a,b nguyên

=> a , b thuộc U(-23) = {-23;  -1 ; 1 ; 23}

Nếu a = -23 = > b = 1

Nếu a = -1 => b = 23

Nếu a = 1 => b = -23

Nếu a = 23 => b = -1 

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I)Mỗi câu sau đây có một lỗi sai. Hãy tìm và sửa lại:

1)We stayed in the countrýide while->during summer.

2)Ba went to America learn->to learn more about computing.

3)The public library in our city has thousand->thousands of books.

4)Is this->that your house over there?

5)Tim's mother used a thermometer to take->check his fever

6)I'm glad I live with other people. i wouldn't like to live in->on my own

I)Mỗi câu sau đây có một lỗi sai. Hãy tìm và sửa lại:

1)We stayed in the countrýide while->in summer.

2)Ba went to America learn->to learn more about computing.

3)The public library in our city has thousand->thousands of books.

4)Is this->that your house over there?

5)Tim's mother used a thermometer to take->check his fever

6)I'm glad I live with other people. i wouldn't like to live in->on my own

make meaningful sentences

1. If/ we/ plant/ trees / streets/ have/ shade/ Fresh air

If we plant trees, the streets will have shade and fresh air

2. I think / we / use/ electric cars/ minimize/ pollution

I think we should use electric cars to minimize air pollution

3. This village / completely/ destroy / floods/ few months ago

This village was completely destroyed by the floods a few months ago

4.He / disappointed/ seaside resort/ full trash

He is disappointed because the seaside resort is full of trash

5. Nowadays/ people/ have/ wear/ gauze masks/ streets/ as/ there/ much exhuast fume

Nowadays people have to wear gauze masks in the streets as there is much axhaust fume

6.If/ we/ use / few/ private vehicles/ environment/ less polluted

If we use fewer private vehicles, the environment will be less polluted

câu 2 is being drunk =))))))