I was about to leave my house _____ the telephone rang.I was about to leave my house _____ the telephone rang.A.while B.asC.whenD.andThe key is CWhy not B?說(shuō)一下while ,as,when這三??詞的用法

熱心網(wǎng)友

be about to do sth. when...是固定搭配,"正要做某事時(shí),....發(fā)生了"以后看到be about to do sth. 就選when,絕對(duì)沒(méi)錯(cuò).

熱心網(wǎng)友

when強(qiáng)調(diào)兩個(gè)事情同時(shí)發(fā)生在一個(gè)時(shí)間點(diǎn)上

熱心網(wǎng)友

when有突然發(fā)生的意思這里需要這個(gè)意思