【題目】 For many years, people __________ electric cars. However, making them has been more difficult than predicted.

A. had dreamed of B. have dreamed of

C. dreamed of D. dream of

【答案】B

【解析】句意:多年以來，人們都夢想著電力汽車的出現(xiàn)。但是，制造電力汽車比預想的要更加困難。根據(jù)時間狀語For many years可知句子時態(tài)為完成時態(tài),故排除C項和D項；句子并沒有過去的時間或過去的動作，因此不存在“過去的過去”，排除A項。故答案為B項。

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