27．—What did you ______ while in college? —English, politics and economics．

We will visit Europe next year ______ we ________ the money.

－Oh, it’s you, Steve! I ______ you. 　 －No surprising. I’ve just had my hair cut.

believe that the project, if _______ according to plan, will definitely work out well.

He is said to ________ to his country because a new president comes into power.