______is your English teacher—He is ___________old.

Never before ___________in greater need of technical experts than it is today.

23．- Why weren’t you at the meeting? – I ________ for a long distance call from my sister in America

I’m going to see what Dad is________. Two hours is a long time to take over a coffee.

Not only ________ increase, but also _________ raised as well. [ ]