—Im sorry______at you the other day. —Forget it. I was a bit out of control myself.
A. shouldn"t shout
B. shouldn"t have shouted
C. mustn"t shout
D. mustn"t have shouted
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Liza______well not want to go on the trip—she hates traveling.
A. will
B. call
C. must
D. may
North Korea has pledged to finish disabling its biggest nuclear facility within a month______fuel oil and other economic aid.
A. in exchange for
B. with regard to
C. by means of
D. in the form. of
【C20】
A. necessary
B. easy
C. important
D. hard
【C19】
A. examined
B. studied
C. learned
D. found