The basketball is _____ the bed _____ the floor.

We should do what we can_______ English

oner one _____ to the new workingconditions, the better it will be _______ his working efficiency.

_____ the chapter four times, and Ifinally understand the author’s theory．

Didn’t you see the sign “No Parking!” on the right— Sorry, I didn’t. But now I know parking _______ here.