题目

The gas tank____________ twenty gallons of gas, but now it may____________ only three gallons.    A. holds; contain              B. holds; be contained    C. is held; contain             D. is held; be contained 答案：A 解析: 此题考查动词的语态知识。hold表示“容纳”，contain表示“装着”时都用主动形式。

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