IV. Put theverb in brackets in correcttense or form. Writethe answers on the answer sheet.1. Less than half of the cans of paint (use)_______________ up to now.2. He (eat)__________ sandwiches while you (talk)__________ to him.3. Jeans (make)_____________about two hundred years ago, and now they (sell)________________in every corner of the world.4. I regret (tell)_____________ you that your application doesn’t satisfy our demands.5. My father advised me (not stay)_______________ up too late because of my poor health.6. He will always remember (award)_______________ the gold medal for his victory in the Competition of Mathematical Talent Search.7. She does not want to go with us to the theater because she (see)____________ that film twice.8. I’m very bored because my mother always (complain) ________________ about her housework.V. Complete the following sentences with the correct form of the words in brackets.1. English is the ____________ language in the United States. (NATION) 2. Earth Hour is a __________________ event organized to raise people’s awareness about the need to take action on climate change. (WORLD)3. Solar energy, wind power and water power are ______________ sources of energy. (ALTERNATE)4. The clothes we wear, like a ________________language, can give out message. (SPEAK)5. His health was seriously affected and he suffered from constant _______________.(SLEEP)6. Thank you very much for your kind _____________.(HOSPITABLE)7. Luckily, many people escaped from the fire in Carina blocks _______________. (HARM)8. He ______________ and missed his flight to Ho Chi Minh City yesterday. (SLEEP)9. The _____________ between Vietnam and Laos has been reinforced a lot during the Chol Chnam Thmay Festival.(FRIEND)10.There is no easy ______________to this problem. (SOLVE)