--What'smadeyousohappy?--________frommybrotherabroad.A.HeardB.HearingC.

发布时间：2020-08-07 01:36:56

--What's made you so happy?--________ from my brother abroad.A.HeardB.HearingC.Because of hearingD.For hearing

网友回答

B解析所缺成分为主语而非原因状语，即Hearing from my brother abroad made me so happy。
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