Câu hỏi: I believe that he was concerned ______ all those matters which his wife mentioned.

A. with

B. over

C. upon

D. above

Câu 1: It is thought that traditional marriage _______ are important basis of limiting divorce rates.

A. appearances

B. records

C. responses

D. values

Câu 2: The computer allows us to work fast and _______.

A. efficiently

B. differently

C. variously

D. freshly

Câu 3: It's hard work looking _______ three children all day.

A. after

B. up

C. to

D. through

Câu 4: _______ is the study of the Earth's physical features and the people, plants, and animals that live in different regions of the world.

A. Science

B. Geography

C. History

D. Technology

Câu 5: I put your keys in the drawer _______ they cannot get lost.

A. because

B. let alone

C. instead of

D. so that

Câu 6: He was determined to give his family a secure and solid _______.

A. base

B. floor

C. basement

D. ground