The number of people present at the meeting _________ about 1000 , a large number of whom _______ experts from abroad.
When the factory __________, there will be many new jobs for graduates.
—Look at the timetable. Hurry up! Flight 4062 __________ off at 18:20. —I will.
It__________ long before we __________the result of the experiment.
If you __________ attend the party , you'd better leave now.
I don't know whether my sister will come or not, but if she __________ , __________.