eye-exercise is good for our eyes.A. Do B. Doing C. Does D. Did——青夏教育精英家教网——

题目内容

_____ eye-exercise is good for our eyes.

A. Do
B. Doing
C. Does
D. Did

试题答案

B

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_____ eye-exercise is good for our eyes.

[ ]

A. Do
B. Doing
C. Does
D. Did

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