He was generous with his time, I was grateful.. A. for whichB. at whichC. with whichD. wi

发布时间：2020-08-16 15:23:45

He was generous with his time,      I was grateful..
A. for which
B. at which
C. with which
D. with which

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(答案→)A. for which
B. at which
C. with which
D. with which
解析：本题考查定语从句。be grateful for对……感激，故用for + which，选A。
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