---I wonder why Mr Green hasn’t showed up at the meeting yet. ---I’m not sure, but he _______ in a traffic jam driving here.
Is there any thing else____you want to get ready for the party this evening?
____on Monday night that all this happened?
It was in the school____he had studied____he began the important experiment.
It is the teacher____taught me when I was a child____I am going to visit.
She won’t leave the TV set,____her husband is waiting for his supper.