No sooner had the bell rung . [ ] A.when the class began B.while the class was b
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![No sooner had the bell rung . [ ] A.when the class began B.while the class was b](/pic/43_994984.jpg)
No sooner had the bell rung ________.
[]
A.when the class began
B.while the class was beginning
C.then the class was going to being
D.than the class began
试题答案
答案:D