—Shall we go out for a walk? —Sorry.I’m too busy to for the moment.
They are the __ who __ Wuhan University and now are playing an important part in our factory.
During the war, people here _____ much pain.
The question of drug-taking is bound to (一定要) _____ at the next conference.
_____ be sent to work here?
--- How long ___ in Shanghai? --- For two weeks. I’m going to visit some schools in Shanghai.