What are they doing? They"re training ______ a charity walk. [ ]A. to

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What are they doing? They"re training ______ a charity walk. [     ]
A. to
B. on
C. for
D. in

答案

举一反三

The walkers need a lot of water ______ the walk. [     ]
A. during
B. while
C. for
D. in

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It"s bad for your health if you go to school ______ breakfast. [     ]
A. with
B. without
C. have
D. has

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—Have you ever ______ the charity walk ?
—Not yet. [     ]
A. heard from
B. listen to
C. heard about
D. hear of

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It"s important ______ you ______ there in time . [     ]
A. that; to get
B. for; to get
C. of; get
D. of; to get

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English is widely used ______ travelers all over the world . [     ]
A.  to
B.  for
C.  by
D.  as

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