Mn ơi giúp em với ạ ..... Ex 8. Give the correct verb form. 1. How long you ( study )………………. English ? for five years. 2. I ( wait ) for two hours, but she ( not come ) ………………..yet. 3. They ( live ) ………………..in Ho Chi Minh city since 1975. 4. She ( read ) ……………….all the books written by Dickens. How many books you ( read )? 5. He ( not , be ) ……………..here since Christmas. I wonder where he ( live ) since then. 6. Jack ( go ) ………………….to Paris for a holiday. He never ( be ) there . 7. ……….You ( sleep )……… so far ? I ………….( ring ) the bell for the last twenty minutes. 8. He ( write )………… a novel for two years, nut he ( not finish ) yet. 9. Mary ( lose )……………. her hat and she ( look) for it until now. 10. I ( see ) ………….that film several times because I like it. Ex 11. Put the verbs in the brackets in the correct form . 1. Mr. Ba always _________________ to work by bus. (go) 2. My uncle _________________ his work on the farm an hour ago. (finish) 3. Her birthday is this Thursday. I _________________ her a new dress. (buy) 4. Students must _________________ their homework before class. (do)