【題目】What ____ he ____ yesterday?

A. does; do B. do; do C. did; do D. did; did

【答案】C

【解析】句意：昨天他做了什么？根據(jù)時間狀語yesterday，所以用一般過去時，疑問句中，前面用了助動詞did，后面的實義動詞用原形。故選C。

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