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

A. because

B. let alone

C. instead of

D. so that

Câu 1: You should not burn _______. You had better dig a hole and bury it.

A. dishes

B. lab

C. garbage

D. shift

Câu 2: It's hard work looking _______ three children all day.

A. after

B. up

C. to

D. through

Câu 3: The ______ to success is to be ready from the start.

A. key

B. response

C. agreement

D. demand

Câu 4: It is thought that traditional marriage _______ are important basis of limiting divorce rates.

A. appearances

B. records

C. responses

D. values

Câu 5: He was _______ when I had those problems and said whatever I did he would stand by me.

A. supportive

B. exciting

C. busy

D. dull

Câu 6: _______ 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