----Mum, I’m afraid I won’t do well in the coming test.----Honey, ____ more careful, ____ you will make it.
9.―Your job ____ open for your return. ―Thanks.
8.Customers are asked to make sure that they ____ the right change before leaving the shop.
7.Although the causes of cancer ____, we do not yet have any practical way to prevent it.
6.I have to go to work by taxi because my car ____at the garage.
5.―Have you handed in your schoolwork yet? ―Yes,I have. I guess it ____ now.