How many problems are there ______? [ ]A. work out

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How many problems are there ______?             [     ]
A. work out
B.  to be worked out
C.  to work them out
D.  working out

答案

举一反三

I prefer ______ there rather than ______ by bike.        [     ]
A. walk; to
B. to walk; going
C. to walk; go
D. well; to go

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—The boys of Class Two are going to the seaside this weekend.
—Um, remember _______ them _______  in the sea alone. It"s dangerous.             [     ]
A. to tell; not to swim
B. telling; swimming
C. to tell; swimming
D. telling; to not swim

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In 2010, I will try to do better in study, because I don"t want my parents _____ me. [ ]
A. to worry about
B. worry about
C. to worry
D. to worried about

题型：同步题难度：| 查看答案

Don’t be shy. Try English as much as possible.[ ]
A. speak
B. spoke
C. speaking
D. to speak

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I started _______ with the other students and made friends.[     ]
A. to talk
B. talking
C. talked
D. talk

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