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Inspring,wecanoftenhearsomebirds

練習題2.18W

問題詳情:

Inspring,wecanoftenhearsomebirds

In spring, we can often hear some birds_______ in our school.

    A. singing           B. sing               C. to sing                  D. sings

【回答】

B

知識點:動詞和動詞短語

題型:選擇題

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