IV. Put the verbs in brackets in the correct verb tense. 
1. I’m tired. I might (go)  go   to bed early tonight.
2. When did Dave (start)   start  (work)  working  in that factory?
3. My grandparents will (go)   go  to Hanoi this summer. They (want)   want to visit their friends and some relatives there.
4. How long have David and Tome (know)  known    each other? – They (know)  have known   each other since 2000.
5. Hung (be) is   lazy. He (not do)  doesn't do   anything at home. He often (spend)  spends   hours (lye)  lying  on the sofa and (play)   playing   video games.
6. Where is Ann (be)  x  ? – She (water)  is watering  the flowers in the garden now. 
7. I (lose)   lost  my car last night. 
8. Students must (complete)  complete   all homeworks before class.
9. How are you (feel)  feeling   now? – I’m tired and sleepy.
10. How about your last vacation? – It (be)  was  wonderful. We (travel) traveled   to Hawaii by plane. The sea (be) is   beautiful and the food (be)  is  delicious. We (have) had   a great time there.
                                                                                                                                                                                          V. Change the following sentences into negative (-) and interrogative (?) form
1. Tom has lived in Hanoi since 2005.
(-)Tom hasn't lived in Hanoi since 2005.
(?) Has Tom lived in Hanoi since 2005?
2. My mother bought me a new dress yesterday.
(-)My mother didn't buy me a new dress yesterday.          
(?) Did my mother buy me a new dress yesterday?
3. Hung likes eating candy very much.
(-)Hung doesn't like eating candy very much.
(?)Does Hung like eating candy very much?
4. The cat is standing in front of the television.
(-)The cat isn't standing in front of the television.
(?)Is the cat standing in front of the television?