ina, we’re going to Sam’s house tocelebrate his graduation, would you like to _________–Great! Let’s go

What class are they having—Math. Their math teacher is _____ the classroom.

10 years ago， _________ only one classroom building in our school. And in 10 years， _________ five classroom buildings in our school.

______ are John’s ______.

It suddenly____ to me that the man might be the robber the police had been hunting for.