Choose the best answer to complete each sentence.

They are working to preserve the delicately balanced                of these wetlands. 

What should we do ____________ biodiversity?

Choose the best answer:

It is predicted that over the next few decades many species will die ____ as once fertile areas turn to desert.

Choose the best answer among A, B, C, or D. 

I was in a such hurry that I left one of my bags …………………

Choose the best option A, B, C, or D to complete the sentences.

The first _______ was done by Alexei Leonov, a Russian cosmonaut on March 18th, 1965. It was 10 minutes long.

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

Please spend time ________ over my composition for spelling errors!

Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence.

‘Well done. You did great.’ ‘__________’

Choose the best answer A, B, C or D for the sentence: "We saw a quick film showing the various stages in the _______ of glass."

Choose the correct response to each of the following exchanges: 

"Would you mind waiting for a moment?" the shop assistant asked the woman.

The shop assistant asked the woman ____ for a moment.

Choose the most suitable word(s) to these sentences by circling A, B, c, or D.

Could you recommend a Vietnamese family to me…………………… when I study there?

Supply the appropriate forms of words in the brackets. 

There was a_________ in the arrangements so I missed my flight. (SLIP)

Vocabulary and Grammar: Choose the best option A, B, C or D:

She's a very _____ speaker. Everybody listens with great interest whenever she speaks.

Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence.

Would you mind if I _______ a friend to the party?

Choose the word or phrase with the same meaning as the underlined part. Write A, B, C, or D on your answer sheet

From the evidence, they inferred that he was guilty.

Choose the best answer:

They can send submarines to take photographs of animal life and bring back to the __________ for further study.

Choose the underlined word or phrase that needs correcting. Write A, B, C, or D on your answer sheet.

Our neighbor (A) will look for (B) the garden when (C) we go on (D) holiday.

The worker bees choose one baby from the hive to become the new queen and then feed it royal jelly made for pollen and saliva.

Choose the correct answer (A, B, C or D) in each sentence:

Congratulations, Trang. You (just, win) _____________ the first prize in the English Speaking Contest.

Choose the underlined word or phrase (A, B, C or D) that needs correcting.

Don’t (A) use so much fossil fuel although (B) there will be (C) nothing left (D) for future generations.

Choose the word, phrase or expression that best completes each sentence below:

 He hasn't found the book ____________ I gave him yesterday.

Choose the best answer A, B, C or D for the sentence: "The company needs to reduce its _______ on just one particular product."