-- Do you think it's a good idea to make friends with your students?-- ______, I do. I think it's a great idea.

 So far, several ships have been reported missing _______ the coast of Bermuda Island.

Mother went shopping; ______, I cleaned the house.

The student went through the paper, finding some mistakes that might         have been ignored．

I caught the last bus from town, but Harry came home___________ that night.