1. 根据句意，用方框中所给单词的适当形式填空。每词限用一次

sleep  close  road  cost store

1. （1） This new bike is ￥800! Ittoo much.
3. （2） I need to buy a few things from the
5. （3） Don't make noise. The baby is now.
7. （4） Pleaseyour books and look at the blackboard.
9. （5） Parents tell us not to play on the because it's dangerous(危险的)。