The boy could ride a bike __________ of six.[ ]A. at ageB. in the ageC. on a

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The boy could ride a bike __________ of six.[ ]
A. at age
B. in the age
C. on age
D. at the age

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举一反三

The boy is sitting ______. the running car. Suddenly he saw a dog is standing ______the  care on the
road.    [     ]
A. in the front of; in front of
B. in front of; in the front of
C. at the front of; at front of
D. in the front of; in the front of

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Don"t spit everywhere ______.    [     ]
A. in public
B. in the public
C. at public
D. at the public

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A collection of photographs _________in the museum were all taken twenty years ago.   [     ]
A. on the display
B. is on the display
C. on display
D. is on display

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—Did you finish your writing assignment(作业)?
—Of course I did. ________, I have got an "A".[ ]
A. Anyway
B. On the way
C. By the way
D. Whatever

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选词填空。每个词组或短语限用一次。

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