Try to guess its meaning when you meet a new word. Don’t _____________ your dictionary all the time.
---When shall we start, today or tomorrow?--- is OK. You decide.
Here’s useful book . book is written by Bill Gates.
— I think students should have mobile phones to call their parents at school..—_______. They often use them to play games instead.
To our joy, Zhou Yang _______comes from our province won one gold medal in the Olympic Winter Games again.
---Who’s the man over there? Is it Mr. Black?--- It _________ be him. He’s much taller.