Câu hỏi: The police had to _____ the crow ______.

A. keep … to

B. keep … under

C. keep … back

D. keep … on

Câu 1:  She looked every where for her book but ______ had to return home without it.

A. lastly

B. at the end

C. in the end

D. at the last

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

A. itch

B. rub

C. blemish

D. flush

Câu 3:  I cannot undo the _____ in this piece of string.

A. bunch

B. lock

C. knot

D. tie

Câu 4: He has always gone _____ strange hobbies like collecting bottle-tops and inventing secret codes.

A. into

B. by

C. in for

D. through

Câu 5: ______ of money prevented us from taking a holiday this year.

A. Limit

B. Freeze

C. Emptiness

D. Lack

Câu 6:  Because of the poor harvest, wheat prices have ______ in the last six months.

A. added

B. jumped

C. amounted

D. gathered