单项选择题

For many years, people（）electric cars. However, making them has been more difficult that predicted.

A. had dreamed of
B. have dreamed of
C. dreamed of
D. dream of

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单项选择题What does the underlined’ word collapsed probably mean（）

A. Were destroyed.
B. Caught fire.
C. Were flooded.
D. Sank.

单项选择题What is the total number of deaths in the earthquake（）

A. 2,000,000.
B. Between 490 to 5,7002.
C. 200,000.
D. It was hard to know.