题目内容

单词拼写。
1. Do you know about Newton's law of _____ (引力)?
2. Never _____ (强迫) anyone to do anything he doesn't want to.
3. A bomb _____ (爆炸) near the doorway of the restaurant from across the street.
4. When you are on the moon your _____ (体重) will be less than on the earth.
5. Clouds were _____ (飘浮) across the blue sky.
1. gravity  2. force  3. exploded/explodes  4. weight  5. floating
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