Iwonder________thatmadehimdecidet

发布时间：2020-07-09 20:01:01

I wonder ________ that made him decide to work as a volunteer in Xizang．













A.what was it












B.what it was











C.why was it











D.it was when

网友回答

B解析强调的部分作句子的主语，故疑问词应为what；I wonder后面是宾语从句，应用陈述句语序。故选B项。
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