【題目】Sally ________，apologizing for being late.

A. stayed up B. mixed up

C. showed up D. stepped up

【答案】C

【解析】句意：薩麗來了，道歉說來晚了。show up“出現(xiàn)，現(xiàn)身”，符合題意。stay up“不睡覺，熬夜”；mix up“混淆，弄亂；攪勻，攪拌”；step up“加緊，加強，促進”。故選C。

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