you are supposed to do you don’t like a thing is changing itDon’t complain．A. That; wha

问题补充：

you are supposed to do you don’t like a thing is changing it．Don’t complain．

A. That; what

B. When; that

C. What; since

D. What; when

答案：

A. That; what

B. When; that

C. What; since

(答案→)D. What; when

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