. II. Put the verbs in the brackets into the correct tense.

1. She (come) .......................................... to France 2 years ago. 2. I (just send) ................................................. the letter. 3. He (work)........................................... for that company for 5 years. 4. I (graduate).................................... from Hue University last year. 5. Tom (play )...................................... football every afternoon. 6. I (cook) ....................................... in the kitchen when he came in 7. Mai (attend) .................................... a meeting at the moment. 8. (help) ................................. him whenever he needs. 9. Mary (find) ................ a five – pound note while she (walk) .....................to school yesterday. 10. I (just finish) ..................... reading War and Peace .It's a brilliant book. 11. I (not be) ........................ at work tomorrow ,I'm taking the day off. 12. How long ............... you (be ) ........ a nurse, Mss Lan? For 5 years. 13. While Peter (drive) ....................... home late last night he (run) ...................... out off the petrol. 15. She always (get) ........................... up early to study her lessons. 16. Nylon (invent) .............. in early 1930s by an American chemist, Julian Hill. Other scientists (work) ........... with his invention and finally on 27 Octorber 1938, nylon (introduce).................. to the world .It was cheap and strong and immediately (become) ................. successful, especial in making old ladies' stockings. During the Second World War , it (use) ................. to make parachutes and tyres. Today, nylon (find) .................... in many things: carpets, ropes, seat bells, furniture, computers and event space parts for the human body. It ( play ) .................. an important part in our lives for over 50 years. Next year, about 2.6 million tons of nylon (manufacture) ...............