The couple had quarreled all time before they 　　　     their engagement

Some of this heat near the earth's surface _________ make electricity.

My father ____ my brother for driving but he wanted to pick ____ the knowledge of the computer during his spare time.

Her husband is looking forward to her return as she is to ______him.. 

I try to make him understand that I’m not interested in him, but he never gets the ____.