I/

1. B

2. C 

3, A 

4. D

5. C

6. B

7. D

8. A

II/

1. D

2. B

3. D

4. A

5. B

III/

1. Salina lives in a village in Africa.

2. She walks three kilometers to the river.

3. No, it isn't

4. No, she can't

5. She helps her mother in the house.

IV/ 

1. I will write a letter tomorrow.

2. Turn off the light when you don't use.

3. Robots will be able to do all the housework instead of us

4. We will have robot look after the children.

V/

1. has ever seen

2. is - will go

3. rides - is walking

4. is

5. is sleeping

6. has

VI/

1. In the future, home robots are able to do all the housework (?)

2. Hoa is the most beautiful person in my class.

I,  1, B       2, C      3, A      4, D      5, C       6, B       7, D       8, A

II, 1, D       2, C      3, D     4, A       5, B

III, 1, She lives in a village in Africa.

    2, After she get up, she walks 3 kilometres to the river.

    3, No, it isn't.

    4, No, she can't.

    5, She helps her mother in the house.

IV, 1, I will write a letter tomorrow.

     2, Turn off the light when you not use.

     3, Robot will be able to do all housework instead of us.

     4, We will have a robot to look after the children.

V, 1, seen         2, is                  3, will go            4, rides

    5, walks        6, was              7, is sleeping      8, has

VI, 1, All the housework can be done by home robots in the future.

     2, Hoa is the most beautiful student in my class.