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: It is easy to open a shop but hard to keep it always open.

A. welcome

B. appear

C. switch

D. close

Câu 2: As long as you are still alive, you will definitely encounter the good things in life.

A. well

B. surviving

C. sick

D. dead

Câu 3: Keep only fish that you will eat; release the rest.

A. catch

B. hold

C. take

D. have

Câu 4: Kevin stopped to buy the evening paper from a news vendor.

A. purchase

B. get

C. sell

D. give

Câu 5: One in seven accidents is caused by sleepy drivers.

A. awake

B. unwell

C. exhausted

D. talkative

Câu 6: I love it when someone's laughter is funnier than the joke.

A. cry

B. shout

C. smile

D. frown