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30. (单选题) Thank you for the great trouble _________ help me with my computer.(本题1.0分)
A、 that you have taken to
B、 you have had to
C、 you paid and
D、 that you have made to
A、 that you have taken to
B、 you have had to
C、 you paid and
D、 that you have made to
参考答案