问题标题:
afewminuteslater,i____atthedoorandanoldman_____it.A.knocks;openingB.knocked;openedC.knock;openD.knocking;opening
问题描述:
afewminuteslater,i____atthedoorandanoldman_____it.
A.knocks;openingB.knocked;opened
C.knock;openD.knocking;opening
宋自林回答:
答案:B
I后跟谓语动词,排除D,而and连接的并列句左右时态要保持一致,所以都用一般过去时knocked,opened
不明白的再问哟,请及时采纳,多谢!
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