III

1-D                    2-B                 3 B                           4-C                 5-D

Part four

I

1, not spent => didn't spent

2, three week

3, have

4, doing

5, did

III, 

1, Tim like hearing about how students live in Vietnam

2, Can you show me the way to nearest post office

3, My uncle took me to see the one pilla Pagodo last Sunday 

4, Nga didn't go to school yesterday because she was tired

5, Hanh needs to buy some stamps for the overseas mails

III

1,D

2, C

3, B

4, C

5, D

I,

1, did not spend

2. three week

3, have

4, doing

5, did

III,

Tim likes hearing how student live in Viet Nam

Can you show me a way to nearest post office

My uncle take me to see one pillarPagoda last Sunday

Nga did not go to school yesterday because she was tỉed

Hanh needs to buy some stamps for overseas mail