The flu is believed ______ by viruses that like to reproduce in the cells inside the human nose and throat.
A. to be caused B. to have caused C. being caused D. causing
Whether you believe it or not, it is ______that causes your illness.
A. because of your overweight B. you are so overweight
C. because you are overweight D. your being overweight
If only he _____ quietly as the doctor instructed, he would not suffer so much now.
A. would lie B. lay C. had lain D. should lie
When disaster strikes, you _____ find yourself without water, gas and electricity.
A. will B. must C. should D. might
—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 time
C. No wonder D. No doubt
—Jimmy, had a lot of parties recently.
—Yes, that might _____ his failure in the examination.
A. sum up B. account for C. push for D. make sense of
