Chairperson Xi calls on us to do what we can_______ as much as possible.【单选题】

时间：2021-06-28 21:43:36 解答: 81 次

Chairperson Xi calls on us to do what we can_______ as much as possible.

A. save

B. to save

C. saved

D. saving

正确答案：

参考解析：

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