Câu hỏi: At times, this can be risky, and the keepers have been injured and one has been killed.

A. good

B. useful

C. healthy

D. secure

Câu 1: She had a cozy little apartment in Boston.

A. uncomfortable

B. dirty

C. lazy

D. warm

Câu 2: The wise man has long ears and a short tongue.

A. short

B. prolonged

C. high

D. crooked

Câu 3: Last night they stayed at home and watched TV.

A. day

B. noon

C. midnight

D. morning

Câu 4: Rich families find it easier to support their children financially.

A. Wealthy

B. Well-off

C. Privileged

D. Poor

Câu 5: I love it when someone's laughter is funnier than the joke.

A. cry

B. shout

C. smile

D. frown

Câu 6: Use water sparingly and keep water clean.

A. dusty

B. dirty

C. wicked

D. halfway