—I wonder why Susan looks worried today. —I’m not sure, but she _____a small accident driving here.
The windows haven’t cleaned for a long time. They need ______.
I can’t help being touched_____ I see the photo of the little Afghan girl crying over her mum’s body
If a computer crashes,you will lose the file you _____ on if you don’t save it early enough.
_____ by the heavy snowfalls, Chenzhou, a city in South China, was cut off from the outside, ________ water and electricity shortage.
The better use you can make __________ time, the greater contributions you will make _________ society.