Câu hỏi: Many scientists agree that global warming poses great threats to all species on Earth.

A. irritations

B. annoyances

C. fears

D. risks

Câu 1: Don't be concerned about your mother's illness; she'll recover soon.

A. surprised at

B. worried about 

C. embarrassed at

D. angry with

Câu 2: He’s really delighted with his success.

A. pleased

B. angry

C. entertained

D. annoyed

Câu 3: As tourism is more developed, people worry about the damage to the flora and fauna of the island.

A. fruits and vegetables

B. flowers and trees

C. plants and animals

D. mountains and forest

Câu 4: He resembles his brother in appearance very much, which makes his friends unable to recognize.

A. names after

B. calls after

C. looks after

D. takes after

Câu 5: It’s a really difficult matter to decide how to solve now. I will need time to think it twice.

A. to think it over

B. to make it better

C. to make up for it

D. to think out of time

Câu 6: Dozens of applicants showed up for the vacant position, but only a handful of them were shortlisted for the interview.

A. small amount

B. person

C. hand

D. small number