【題目】At the age of 14, Father had to leave school and start working. There would be no one to support the family _______ he not worked.

A. did B. has C. had D. was

【答案】C

【解析】

試題分析：考查動詞時態(tài)。句意：14歲時，父親不得不離開學校，開始工作。要是他不工作的話，就沒有人來養(yǎng)活這個家庭了。此處是if引導的非真實條件句，與過去事實相反，當把if省略時則把助動詞had/should情態(tài)動詞were提到主語前面。故選C。

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