题目内容
If a thing is worth ________, it must be well ________.A. doing; done
B. to do; doing
C. to do; done
D. being done; doing
答案：A
解析：
提示：
解析：
| Worth doing，值得做；第二句是被动语态。
|
提示：
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题目内容
If a thing is worth ________, it must be well ________.A. doing; done
B. to do; doing
C. to do; done
D. being done; doing
| Worth doing，值得做；第二句是被动语态。
|