问题
选择题
| 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
答案：B
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| 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