I don’t know _______. —You can ring him up to ask.

Even though computer screens don’t radiation, the stress from staring over long periods can cause harm to your vision.

You’ve agreed to go? So why aren’t you getting ready? –But I ________ that you would have me start at once

I’m afraid I’m not ___ to help with the show, for I am fully occupied with my own project

_______ all the seats were full, hehad no choice but to stand up.