Stop __, boys! It's time for class. A.talking B.to talk C.talk D.being talk
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The trainer usually gives the animal a piece of candy or fruit __. A.when it is hungry B.before it plays a trick C.when it starts to play a trick D.after it has done the trick
_________A. runningB. stoppingC. rising D. falling
请在第_____处填上正确答案。 A.Look B.Listen C.Skim D. Read
请在第_____处填上正确答案。 A.reduce B.listen C. be quiet D.concentrate