---Have you ever fed them?---__________. But I have cooked for them.Yes, I have. B. No, I haven’t. C. No, I didn’t.
_________ of the population in this area __________ farmers. A. Two thirds ,are B. Two thirds, is C. Two third, is
----How long _________ she _______ this book ? ----She _________it from the library two weeks ago. A. has, kept; borrowed B. has, kept; lent C. has, borrowed; borrowed
Nothing can be done _______ he returns.
We must ________ourselves _______our work.
—Could you tell me when________ in Bangkok? —Sorry, I don’t know. I even want to know what to do when ________.