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: His work ______ new ground in the treatment of cancer. It is now giving many cancer victims hope of complete recovery.

A. broke

B. found

C. dug

D. uncovered

Câu 2: The world’s biodiversity is declining at an unprecedented rate, which makes wildlife ________.

A. prosperous

B. vulnerable 

C. prefect

D. remained

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: Many young people in rural areas don't want to spend their lives on the farm like ______ parents.

A. weather-beaten

B. up-to-date

C. long-term

D. wide-range

Câu 5: A true relationship is thought to be a friendship that may__________through changes in the lives of the friends.

A. entail

B. remain

C. endure

D. continue

Câu 6: When the kids asked him about his girlfriend, he’d go as red as a __________.

A. tomato

B. chili

C. strawberry

D. beetroot