1. 选词填空

place an order, be good for, keep track of, relax your mind, millions of, keep still

1. （1） After the morning's study, you should and enjoy yourself.
3. （2） As is known to all, doing exercise every day your health.
5. （3） Please while I am taking a photograph of you.
7. （4） This invention is sure to change the mode of living for men.
9. （5） We wish to with your corporation for 10, 000 bicycles.
11. （6） It is important to your purchases and know your balance at all times.