1. (2014 •河北) Someone at the door. Can you open it?
A. knocks B. knocked
C. is knocking D. was knocking
1. C 考查動詞的時態(tài)。由第二句“Can you open it?”可知, 敲門的動作正在進行,要用現(xiàn)在進行時。句意:有人正在敲門,你可以去打開門嗎?故選C.
科目:初中英語 來源: 題型:
2. —What are the boys doing in the river?
—They .
A. are swiming B. are swimming
C. swimming D. are swim
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