1.children should be able to master some easy life s_____
2.The sports meeting will c__after lunch unless it rains heavily.
3.If you c____the two coats,you will see that this one is better.
4.Tim is c__about playing computer games,he plays them until midnight every night.
5.If you can't ride your bike to the top of the hill,you'll have to p___it up.
6.With the d__of society,the environmental problems are becoming more and more serious.
7.Smoking can c___lung cancer,so you must stop smoking now.