Câu hỏi:

What is the most well-known __________ invention in the 19th century?

A. scientist

B. scientific

C. science

D. scientifically

Câu 1:

This ancient cathedral __________ by two archeologists in 1988.

A. discovered

B. is discovered

C. had discovered

D. was discovered

Câu 2:

Find and correct the mistakes

We must act now before it is too late doing anything about the problem.

A. now

B. late

C. doing

D. about

Câu 3:

Bobby asked me __________ I liked collecting stamps.

A. as

B. though

C. whether

D. what

Câu 4:

Choose the letter A, B, C or D the word that has the underlined part different from others.

A. explore

B. enormous

C. become

D. engine

Câu 5:

If I watch weather forecast regularly, I __________ when the storm strikes the city.

A. will know

B. know

C. did know

D. knew

Câu 6:

Choose the letter A, B, C or D the word that has the underlined part different from others.

A. bulb

B. umbrella

C. suppose

D. underground