He _____ be really difficult at times even though he ,generally speaking, is a nice person.
A. can B. should C. shall D. must
John received an invitation to dinner, and with his work ________, he gladly accepted it.
A. finished B. finishing C. having finished D. was finished
You can only be sure of_________ you have at present; you cannot be sure of something _____ you might get in the future.
A. that; what B. which; that C. /; that D. what; /
—Could you turn the TV down a little bit?
—________. Is it disturbing you?
A. Take it easy. B. I’m sorry. C. Not a bit D. It depends
—Guess what! I have got A for my term paper.
—Great! You ______ read widely and put a lot of work into it.
A. must B. should C. must have D. should have
H1N1 control and prevention is a to China as well as the whole world．
A．surprise B．challenge C．reaction D．threat
