When first to his new classmates, the little boy felt shy and said nothing.A. introducingB

发布时间：2020-08-16 13:05:56


When first         to his new classmates, the little boy felt shy and said nothing.
A. introducing
B. introduced
C. introduce
D. being introduced

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A. introducing
(答案→)B. introduced
C. introduce
D. being introduced
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