We for Tom at ten last Sunday.He often kept us __.

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We ____ for Tom at ten last Sunday.He often kept us ______.
a.were waiting,waiting b.were waiting,wait c.waited,waiting d.waited,wait
答案有的说选a有的选c,第二个空keep sb doing不用讲,那么在十点正在等Tom可以使用进行时吗?

这里就是因为是时间点,才用进行时的,你要区分,瞬间动词和过去一个时间点的区别.
瞬间动词,是这个动作一瞬间就完成了,所以没有进行时,但是并不代表说,过去一个时间点,不能用延续性动词呀~
过去一个时间点的话,那么如果是瞬间动词,就用一般过去时,延续性动词就用过去进行时.

.We ____ for tom at ten last Sunday.He often kept us ______. We ____ for tom at ten last Sunday.He often kept us ______.a We ____ for Tom at ten last Sunday.He often kept us ______. We were waiting for Tom at ten last Sunday.He often kept us We____for Tom at ten last Sunday.He often kept us_____. We ____ (work) on the farm at ten o'cloke last Sunday mornin Last Friday he kept us waiting for him ( ) an hour. At last,the time came for us to attack,____ we had been wait At weekends we often have parties at ____(Tom), We often enjoy ourselves at ______ (Grace) on Sunday. -Tom often has bread for breakfast,____ he?-Yes,he___ We enjoyed at the beach last sunday.