Sorry________you________forlong

发布时间：2020-07-28 06:14:59

Sorry ________ you ________ for long.A.keeping; waitingB.keep; waitingC.to keep; waitD.to keep; waiting

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D解析解析：keep ab. doing sth.让某人总是做某事，上句可写为：I'm sorry to keep you waiting for long.对不起让你久等了。
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