The headmaster will not permit the change in the course, nor _________ it a thought.

By the time he realizes he________into a trap, it’ll be too late for him to do anything about it.[ ]

Waiter! How soon can I get my food? I just have half an hour left before my train leaves. —It________be ready in five minutes.

He said it was this classroom _______ he found his lost watch and _____ he would take good care of it from then on

you beento the Great Wall—Perhaps notin my memory. ________, it might have been during my early childhood.