Choose the best answer:
Paleontologists have come to no definite conclusions as to ______ there have been periodic mass extinctions throughout pre-history.

Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.

Câu 5. He plagued me ___________ stupid questions all through lunch.

Many birds didn't survive the severe winter. 

Scientists now understand _ _ _ _ _ _ _ _ _ _ _ _

Mark the letter A, B, C or D to indicate the correct answer to each of the following question

31. I need an assistant - I’m up to----------with work.

Yesterday I met my friend…................ gave me a dog on my birthday.

Choose the correct answer.

Being well-dress and punctual can help you create a good _______ on your interviewer.

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions. 

_________compensation for the delay, the airline offered passengers a free night's stay at a nearby hotel.

Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Câu 21. Renewable resources, such as solar, wind, tidal energy, etc., are the resources that can be replenished overtime naturally.

Mark the letter A, B, C or D to indicate the correct answer to each of the following question:

29.Yes, I agree but at the same time it's not the end of the world

Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

Câu 19. I highly appreciate Mr. Harrison's practical advice on minimizing deforestation.

Mark the letter A, B, C or D to indicate the correct answer to each of the following question:

33. Recently he's turned over ____________ and he's not abusing drugs any more.

Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

Câu 28. Though the police tried their best to catch the thief, he was escaped.

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions. 

Some cities are switching to renewable energy sources rather than relying on __________   ones such as coal and gas.

Mark the letter A, B, C or D to indicate the option that best completes following exchanges.

Câu 48. It's late in the evening and two sisters have just come home.

- Jenny: "I'm starving, and there's nothing in the kitchen."

- Jane: “___________________”

Choose the best answer:
The cinema is right on the corner – you can’t ……….. it.

The dog, __________ tail I stepped on, bit me.

Choose the best answer:
…… number of students volunteer to come and help ….. poor during the summer.

Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.

Câu 8. It is almost impossible _______ our life without electronic appliances which make the housework better and faster.

 I’m having problems with David. He ............. me up in the middle of the night and  ......... me his troubles.

The______ is the air, water and land in or on which people, animals and plants live.