She _______ his number in the phone book to make sure that she had got it right.
A. looked up B. picked out
C. looked for D. made out
Teachers have to constantly update their knowledge in order to maintain their professional __________.
A. consequence B. independence
C. competence D. intelligence
I don’t like fish, so I ________ eat it unless I was extremely hungry.
A. needn’t B. shouldn’t
C. can’t D. wouldn’t
I have no idea ____________ measures the government will take to stop the river from being further polluted.
A. which B. what C. that D. whose
Scientists are convinced __________ the positive effect of laughter _________ physical and mental health.
A. of; at B. by; in
C. of; on D. on; at
The little girl __________ the money for herself, but she __________ it away.
A. could have used; gave B. would use; gave
C. could have used; had given D. would use; had given
