这个作业怎么做？I tried to call you
Itriedtocallyou_____Iheardfromhim,butyouwerenotin.[]A.sinceB.whileC.untilD.assoonas...
I tried to call you _____ I heard from him, but you were not in. [ ]
A. since B. while C. until D. as soon as 展开
A. since B. while C. until D. as soon as 展开
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