—How long are you staying there?— _____depends.
The situation persent is very difficult for the government___
—What do you think of the book?—Oh,excellent.It’s worth___a second time
It is___to include really high-quality illustrations
The chemistry teacher required the students___more attention___the lab clean
—Do you know where the woman is from?—No.But when she talked to me yesterday,her accent suggested that she___a native from Shanghai