Do you know the boy _______ Simon? —Yes, he’s my brother’s good friend.

The doorbell is ringing. It _________ Alice , because she__________ Washington.

About _____________ of the students this year were born in the 1990s.

Who is the woman in black?— ________ is our physics teacher.

Can you give me _____hand , it’s really ______hard work for me .－ Sure.