In my opinion, keeping dogs should not be banned, but ________ to certain areas.

Some retired people have nothing to do. They often get together and ___for hours talking about their past experiences.

How did you find your visit to the Summer Palaceyesterday—____________ I got separated from my 80-year-oldgrandparents

He is an honest boy. I have no reason to what he said.

I don’t become a serious climber until the fifth grade, ______ I went up to rescue a kite that was stuck in the branches of a tree.