【題目】—You are always on time for everything. How ________ it be that you were late for the meeting this morning?

—Something went wrong with my car. But I didn’t know it before I left home.

A.shouldB.couldC.mightD.must

【答案】B

【解析】

句意：——你做任何事都總是準時。你今天早上開會怎么會遲到呢？——我的車出了點問題。但是在我離開家之前我并不知道。

考查情態(tài)動詞的辨析，should情態(tài)動詞，意思為應該，表示義務、推測和不確定，用于各種人稱；might情態(tài)動詞，意思為可能，語氣比較委婉；must情態(tài)動詞，意思為必須，表示義務和揣測，用于肯定句中；根據(jù)分析原句的語氣，我們可以發(fā)現(xiàn)說話者的語氣帶有驚訝和不相信的情感色彩，could，意思為能夠，表示驚異、懷疑、不相信等態(tài)度，主要用于否定句、疑問句或感嘆句中，B項表達的感情色彩正好符合原句的語氣，故選B。

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