When you have_____test,you must be careful all______time 。A. a;/ B. a;the c. an;a
Doctors tell people ________ their hands often and to stay home if they feel ill.
—Why did you buy a radio? —________ English.
Nancy is really a hardworking student. We often see her ________ books in the classroom. A.readB.to read C.reads
—Where's your brother now, Bob? —I saw him ________ in the street a moment ago and I told him ________. A.playing; don't do so B.playing; not to do so C.play; to do so
—How about going shopping this weekend, Peter? —Sorry. I prefer ________ rather than ________.