Câu hỏi: Blacken the letter A, B, C, or D on your answer sheet to indicate the word with the main stress different from that of the other three words in each question.

A. escape

B. before

C. enough

D. welfare

Câu 1: The students complained that the teacher was inexperienced. 

A. The teacher was popular despite his inexperience.

B. The teacher was favored because of his inexperience.

C. The students praised the teacher for his inexperience.

D. The teacher was not supported for his inexperience.

Câu 2: New sources of energy have been looking for as the number of fossil fuels continues to decrease.

A. New sources

B. been looking

C. fossil

D. continues

Câu 3: Scientists have invented walls and windows that can block out the noise, which allows individuals to focus on their work without ________.

A. be disturbed

B. disturbing

C. being disturbed

D. being disturbing

Câu 4: Do you know that ________ longest river in ________ world is ________ Nile?

A. the/the/the

B. a/the/the

C. x/the/a

D. the/the/x

Câu 5: As ________ in Greek and Roman mythology, harpies were frightful monsters that were half woman and half bird.

A. description

B. describing

C. to describe

D. described

Câu 6: We arrived at the airport. We realized our passports were still at home.

A. Not until we arrived at the airport, did we realize that our passports were still at home.

B. We arrived at the airport and realized that our passports are still at home.

C. Not until had we arrived at the airport, we realized our passports were still at home.

D. It was until we arrived at the airport that we realize our passports were still at home.