2. 外语
  3. Our physics teacher explained to us that light______faster than sound.

Our physics teacher explained to us that light______faster than sound.

admin2018-09-11  43
问题 Our physics teacher explained to us that light______faster than sound.
选项 A、is traveling
B、traveled
C、travels
D、has traveled
答案C
解析 这是一道语法题，考点是动词时态。该句主句虽然是过去时，但从句是自然现象因此要用一般现在时。
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成人本科学位英语

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