【題目】—Do you know sound travels very fast?
—Yes. But light travels _sound.
A.as faster as
B.a bit of faster than
C.slower than
D.much faster than

【答案】D
【解析】句意:——你知道聲音傳播速度很快嗎?——是的,但是光傳播速度比聲音快得多。根據(jù)常識我們可知知道光速比聲速快得多,比.....得多,在比較級前加much 或a lot 。所以答案是D。

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