he years, people have learned from ants that teamwork and perseverance are indeed two key ______ to success.

Excuse me. ______ is it from here to the Bus Change Center— Quite near. It’s only about half a kilometer.

Can I use the telephone on the table, sir?一 Under no circumstances ____to use the telephone in the office for personal affairs.

______play computer games after school.

My English teacher is very good. She is like my mother ______ me.