149] He was about to tell me the secret someone patted him on the shoulder. [译文] 正当他打算把这个秘密告诉我的时候.有人拍他的肩膀. A. as B. until C. while D. when [答案及简析] D. 在主句是be about to do sth.的情况下.从句用when引导. 查看更多

 

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