________ of us think the English examination was difficult.But I still don’t think ________ could pass it.

Unfortunately, our bus was broken on the way. So all of us _______ and pushed it to the station.

Tom hid himself behind the door, _________ he could hear the steps of his mother clearly.

______ to frighten the poor man, Mrs. Richards quickly hid under stairs.

Spring has come. We can’t____ the plan. The trees must be planted this week.