People usually think lions are _____ scary.

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

Mike, can you tell us something about our new teacher?– Oh, sorry. I know nothing because I _____________ him before.

His father promised _________ him to visit the museum.

In our city, ________ college students want to work in West China in the future.