No sooner ______ down on bed ______ the telephone rang.
Please tell me ______you want me to say.
There______ more than one student who_______ late this morning.
Nowadays, most people,in order to keep fit,prefer walking to driving ____necessary.
The expo will be held in Shanghai, _____a lot of advanced technology will be shown for the first time.
We ____ last night, but we went to the concert instead.