—Have you got any idea on Rachel’s question?— Sorry. I _____ to her when she asked.
—What do you think of the book? —Oh,excellent.It's worth ___________ a second time.
The library needs __, but it will have to wait until Sunday.
A left-luggage office is a place where bags _______ be left for a short time, especially at a railway station.
Sir, you ______be sitting in this waiting room. It is for women and children only.
Jack _____ yet, otherwise he would have telephoned me.