Câu hỏi:  I cannot undo the _____ in this piece of string.

A. bunch

B. lock

C. knot

D. tie

Câu 1:  I’m sorry I’m late, I was held up in a traffic _______.

A. block

B. crush

C. jam

D. group

Câu 2: The boy’s allergy to dust caused his skin to _______.

A. itch

B. rub

C. blemish

D. flush

Câu 3: The businessman proved to be an apparently well-behaved ______ middle-aged man.

A. offensive

B. unoffending

C. inoffensive

D. innocent

Câu 4: During the _____ the audience strolled and chatted in the foyer.

A. gap

B. pause

C. space

D. interval

Câu 5: You couldn’t ______ any secrets even for an hour in that little town.

A. keep

B. get

C. learn

D. hear

Câu 6: ______ of money prevented us from taking a holiday this year.

A. Limit

B. Freeze

C. Emptiness

D. Lack