you have made a promise, you should carry it out. [ ] A. Until B. Once C. For D.
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![you have made a promise, you should carry it out. [ ] A. Until B. Once C. For D.](/pic/43_924240.jpg)
_________ you have made a promise, you should carry it out.
[]A.Until
B.Once
C.For
D.While
试题答案
答案:B
解析:once引导状语从句。 |
![you have made a promise, you should carry it out. [ ] A. Until B. Once C. For D.](/pic/43_924240.jpg)
_________ you have made a promise, you should carry it out.
[]A.Until
B.Once
C.For
D.While
答案:B
解析:once引导状语从句。 |