We______forquitealongtime.a、werekeepingwaitedb、werekeptwaitedc、werekeepingwaitingd、werekeptwaiting
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题目内容：
We ______ for quite a long time.
a、were keeping waited
b、were kept waited
c、were keeping waiting
d、were kept waiting
优质解答
D 被要求等 keep doing sth
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