1 C

2 A

Collecting stones : Sưu tầm đá

2 to visit

3 talking

4 going

5 sing

6 take

7 working

8 playing

1C

2A

3B

4B

5C

6A

7B

8C

5 the last time

6 A : yesterday

   B : never

7 A : last Sunday

  B : câu bên trên

 8 vì đây là thì HT

5 were

6 A : Did you go

  B : didn't , I have never worked 

7 A : Did you do

   B : watched - read

8  do you help - is

9 takes

10 went - watched

1 whom

2 whom

3 who

4 who

5 which/that

      1. Somebody has taken some of my books away.

         → ..................Some of my books has been taken by somebody away .................................................................................................................................

      2. They have provided the victims with food and clothing.

         → ..........Victims with food and clothing have been provided by them.........................................................................................................................................

      3. A sudden increase in water pressure has broken the dam.

         → ...... The dam has been broken by a sudden increase in water pressure.............................................................................................................................................

      4. Luckily for me, they haven't called my name.

         → .............Luckily for me ,my name  haven't been called by them.......................................................................................................................................

      5. They have bought the land next to my house.

         → ........The land next to my house have been bought by them ............................................................................................................................................

      6. They have spent a lot of money on advertising.

         → ..........A lot of money on advertising have been spent by them.........................................................................................................................................

      7. The chief engineer has instructed all the workers of the plant.

         → .......... All the workers of the plant has been instructed by the chief engineer ..........................................................................................................................................

      8. Science and Technology have completely changed human life.

            →    Human life have been completely changed by  Science and Technology