Câu hỏi: We were quite impressed by the ______ students who came up with the answer to our question almost instantly.

A. absent-minded

B. big-headed

C. quick-witted

D. bad-tempered

Câu 1: The world’s biodiversity is declining at an unprecedented rate, which makes wildlife ________.

A. prosperous

B. vulnerable 

C. prefect

D. remained

Câu 2: I was very sad when the vet said he’d have to _____ Gertie, our lapdog.

A. put down

B. fell up to

C. pull through

D. wear off

Câu 3: When the kids asked him about his girlfriend, he’d go as red as a __________.

A. tomato

B. chili

C. strawberry

D. beetroot

Câu 4: Please don’t ______ a word of this to anyone else, it’s highly confidential.

A. speak

B. pass

C. mutter

D. breathe

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: My father is in_______ of 30 engineers and 80 workers.

A. pressure

B. leadership

C. impression

D. charge