Câu hỏi: ______- is natural environment in which plant or animals live.

A. Ecology

B. Habitat

C. Extinction

D. Biodiversity

Câu 1: This is the instance where big, obvious non-verbal signals are appropriate.

A. situation

B. attention

C. place

D. matter

Câu 2: When someone …………… a poem or other piece of writing, they say it aloud after they have learn it.

A. recites

B. takes part in

C. completes

D. complete

Câu 3: Some of the participating schools have also decided to use green cleaning products, which are safer since they do not ……. harmful chemicals into the environment.

A. release

B. expose

C. compound

D. deplete

Câu 4: The computer has had an enormous _________ on the way we work.

A. alteration

B. change

C. impression

D. influence

Câu 5: Whenever problems come up, we discuss them frankly and find solutions quickly.

A. happen

B. encounter

C. arrive 

D. clean

Câu 6: I missed the lessons yesterday so I have to___________ on work.

A. put up

B. catch up

C. work up

D. go with