If the bike is broken again, you'll have to pay to _____ .
The flu is believed ______ by viruses that like to reproduce in the cells inside the human nose and throat.
Whether you believe it or not, it is ______that causes your illness.
If only he _____ quietly as the doctor instructed, he would not suffer so much now.
When disaster strikes, you _____ find yourself without water, gas and electricity.
—Sorry, I can’t return your book today because I am only halfway through it.— ______. I have plenty of other books to read.A. Take it easy B Take your timeC. No wonder D. No doubt