【題目】 The real reason why prices ____ , and still are, too high is complex, and no short discussion can satisfactorily explain this problem.

A. were B. will be

C. have been D. had been

【答案】A

【解析】

試題分析：本題考查動詞時態(tài)。

結合句意“過去價格太高，現(xiàn)在仍然太高的原因很復雜...”可知，此處 and 連接兩個并列的系動詞，后者是對現(xiàn)在事實的描述，為一般現(xiàn)在時；前者是對過去事實的描述，應用一般過去時，又主語 prices 為復數(shù)，故用系動詞用 were，A項正確。will be 為一般將來時，have been 為現(xiàn)在完成時，had been 為過去完成時，均不符合句子時態(tài)。故正確答案為A。

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