Not until I was a senior student_________the importance of English.

Kevin found ______ last week. He was very happy.

Have you found the information about Bill Gates________ you can use for the report? —Not yet. I’ll search some on the Internet.

Who’s that man over there standing in the garden? Is it Mr. White?—It __________ be him. He has gone to Shanghai on business.

Millie is getting on well with her friends but she is a little selfish _____.