________ children whose parents had died in theearthquake________ sent to live with families in other cities.

How nice the building is! What is it for— It ______ be a hotel. But I’m not sure.

_____ I had done it I knew I had made a mistake

I have no idea ________ or not he has finished the work.

Mary, I should tell you it is the third time that you________ your homework. [ ]