I'm sorry for ________ you to a lot of trouble.A.puttingB.takingC.havingD.giving
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A解析当trouble和put, take, have搭配时，后面所接的介词不同。它们分别是：put sb. to the trouble of doing sth.意为“使……卷入麻烦做……”；have trouble (in) doing sth.意为“做……有困难”；take great trouble to do sth.意为“不辞辛劳干……”。此题可根据搭配来判断