Iwasjustbeginning________theoffice

发布时间：2020-07-10 14:06:38

I was just beginning ________ the office ________ it began to snow．













A.leaving; when












B.to leave; while











C.to leave; when











D.leaving as

网友回答

C解析begin用于进行时中，后面要接不定式作宾语；when在此作并列连词用，意为“这时”。
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