Choose the best answer:
Not until Kentucky's Mammoth Cave had been completely explored in 1972 ______.

Darwin's theory of evolution incorporates the principle of natural selection.

Choose the answer (A, B, C or D) that best completes each of the following sentences.

No one can predict the future exactly. Things may happen _______.

Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following questions.

Câu 49. Mary was trying to swim in the sea alone. She should never have been allowed to do so.

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 20. Certain parts of town were restricted to residential use, while others were set aside for industrial or commercial development.

Choose the best answer:
We will be there _____ 5:00 o'clock early_____ the morning.

I would like to know the reason ______he decided to quit the job 

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

45. I__________ in love with her the first time, I saw her and we’ve just celebrated our 50th anniversary.

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

Câu 9. It was a complete surprise to discover that teenagers themselves saw heated arguments ________.

The 50 cans of paint that we received in error will be returned to your order ............... department this afternoon by our staff.

The ................. on foreign developments in the fashion industry will include refreshments and a 45-minute question period afterwards.

The weather was very nice, so he found_________a raincoat with him.

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

3. It took Ted a long time to get………….. the breakup of his marriage

The Grand Tuscan Theater is ............. offering a discount on season tickets.

Choose the best answer:
He admitted………………………..the suitcase without asking its owner

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

12. "Let's all be very careful what we say at the meeting tomorrow. I don't want anyone putting their ………. in their mouth."

I asked her  ____________       she understood the lesson.

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. I am just a cog in the machine in this organization as my contribution to it is still minor.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

The fire broke out as a result of Henry’s not paying attention to the kitchen.

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

Câu 6. The two nations came into _____ conflict over air pollution. The two governments solved the dispute peacefully.

Many wildlife reserves have been set up in this country.