Câu hỏi: A _____ is a tube through which a person swimming just under the surface of the sea can breathe.

A. maneuver

B. photograph

C. volume

D. snorkel

Câu 1: Make sure you ______ up the data on your computer, because you might get a virus.

A. back

B. store

C. save

D. copy

Câu 2: When the kids asked him about his girlfriend, he’d go as red as a __________.

A. tomato

B. chili

C. strawberry

D. beetroot

Câu 3: Silence __________ the theatre as the audience awaited the opening curtain with expectation and excitement.

A. fell in with

B. came between

C. hung over

D. dropped out of

Câu 4: The world’s biodiversity is declining at an unprecedented rate, which makes wildlife ________.

A. prosperous

B. vulnerable 

C. prefect

D. remained

Câu 5: Please don’t ______ a word of this to anyone else, it’s highly confidential.

A. speak

B. pass

C. mutter

D. breathe

Câu 6: Daisy has spent the last two weekends _____ hundreds of photographs so that she can put them in separate albums.

A. playing at

B. sorting out

C. cutting off

D. filling up