Your mother _______ take a bus to work?-Yes. But now she usually goes to work on foot.

Living in the central Australia desert has its problem, _____ obtaining fresh water isn’t the least.

Mr. Lee spent the final time of his life in writing after finding out that he ________ soon.

The swimming pool is ________.

Don’t be late _______ class again, OK? —Sorry, I won’t. [ ]