1. (2014 •河北) Someone at the door. Can you open it?
A. knocks B. knocked
C. is knocking D. was knocking
1. C 考查动词的时态。由第二句“Can you open it?”可知, 敲门的动作正在进行,要用现在进行时。句意:有人正在敲门,你可以去打开门吗?故选C.
题目来源:2016年同步导学案课时练七年级英语下册人教版 > 单元复习课
科目:初中英语 来源: 题型:
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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