词汇；请根据句意或括号中的中文提示、英文释义，写出句中所缺单词，使句子通顺。
1. We had a long ________________ (讨论) about the plan.
2. As a student, you should learn how to face ________________ (各种各样的) difficulties.
3. Our parents have taught us not to do something （违反）the law since we were children .
4. We ______________ (比较) the two watches carefully, but found nothing different.
5. --- How many ________________ (行星) are there in the solar system?
-- Eight. And Earth is one of them.
6.The boy put all his __________ (精力) into playing the violin.
7.There was also evidence of a _________ (搏斗).
8.This year’s Beijing Music Awards will be covered ______ (现场直播).
9. The event marked the ________ ( begin) of Hepburn’s successful career .
10. Food will be in the form of ________________ （pill）on Mars.
11.Lucy doesn’t like wearing the school uniform. She prefers to wear something_______________ (fashion).
12.Scientists will (develop) plants that can grow on Mars.
13. The victim had a lot of __________ (enemy).
14.Gravity is a force that stops us (float) in the air.
15. Anyway, the story ____ (it) is interesting.