—Are you going to but a new camera?—Yes. But there are so many cameras that I can’t decide______________.A. how to use B. where to sell C. which to buy
-- _____is that man over there? --- He is a doctor.
Have you ever been to the square _____ was built last year? A. which B. where C. when D what
---Is Lisa a boy’s name or a girl’s name? ---______________.
—Do you have to hold our English party in the classroom? —Well. I don’t know ______if not there.
I would like to buy the black pen because I ___ that kind of pen ____ well.