— Do you know sound travels very fast? — Yes. But light travels sound.A．
题型：不详难度：来源：
— Do you know sound travels very fast?
— Yes. But light travels sound.| A．as fast as | B．a little faster than | | C．much faster than | D．slower than |
|
答案
| C |
解析
| 在宾语从句中客观真理（光速比声速快得多）都用一般现在时。 |
举一反三
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