问题描述:
We____for Tom at ten last Sunday.He often kept us_____.
选择:A were waiting;waiting
B waited;waiting
它不是过去的某一时刻吗为什么不用过去进行时?often后面可不可以加kept,它不是过去式吗?
选择:A were waiting;waiting
B waited;waiting
它不是过去的某一时刻吗为什么不用过去进行时?often后面可不可以加kept,它不是过去式吗?
问题解答:
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