Would you mind _______ the window ? –No, not at all .Do please .[

.—Sally, where is your homework?—Sorry, Ms Zhao. I left it at home. I will_______it to school tomorrow.

We can have ___ bluer sky if we create ___ less polluted world.

______ will the supper be ready? I’m very hungry. 一In a minute. [ ]

____ present our vacations are too short. [ ]