I. 1-D , 2-B , 3-C , 4-C

II. 1-D , 2-A , 3-A , 4-D , 5-A , 6-A , 7-A , 8-C

III. 1- in , 2-at , 3-on , 4-for

IV. 

1- What did Mrs Lien teach you to do ?

2- Who did Nam invite to the Rice-cooking Festival ?

3- How many times are these animals fed ?

4- How long has she worked in that factory ?

V.  1-D , 2-A , 3-C , 4-C , 5-B , 6-C , 7-A , 8-B

I.

1D

2B

3C

4C

II.

1D 

2A 

3A

4D

5A 

6A

7A

8C

III.

1in

2at

3on

4for

IV. 

1.what did Mrs Lien teach you to do ?

2.who did Nam invite to the Rice-cooking Festival ?

3.how many times are these animals fed ?

4.how long has she worked in that factory