问题
填空题
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.
答案
1. gravity 2. force 3. exploded/explodes 4. weight 5. floating