A cough is usually nothing to worry about unless it lasts for ten days _____
A.instead B. or more C. at most D. Only
Of the two coats, I'd choose the _____one to spare some money for a book.
A. cheapest B. most expensive
C. cheaper D. more expensive
I want to thank my friend John, without _____ help, I wouldn't have been saved.
A.his B. whose C. whom D. Which
— Look! Somebody _____the sofa.
— Well, it wasn't me. I didn't do it.
A. is cleaning B. was cleaning
C. has cleaned D. had cleaned
_____ on folk tales, Mo Yan's novels become a mixture of fantasy and reality.
A. Based B. Basing C. Base D. To base
No matter how busy he is, he makes _____a rule to surf the Internet for information.
A.him B.this C. that D. it
