IV.  Cho dạng đúng của động từ trong ngoặc. 
1.He (do) .............................  our work now. But he will go with you when he (finish) ………..it.
2.On my way home I often (meet) ……….  many children who (go)  ………….to school.
3.The sun (rise) ……………  in the east and (set) ………………… in the west.
4. Mary (not work) ……………………today because it's Sunday.
5. My father and I (visit) …………………….Ha Long Bay this summer vacation.
6. You mustn’t (eat) ………………..food in the classroom.
7. Let’s (help)…………….. mom, Lan. She (clean)……………… the floor.        
8. Look! The plane (fly) ………………..towards the airport. It (land) ……………………..
9. Why we (not/ go)…………………………………….. to Ha Long Bay this summer?      
10.What(be) …………….there ( eat)…………………………………