Please give the book back ______ three weeks. (   )

A．in

B．to

C．for

The birds are singing ___ the tree.(   )

A．in

B．at

C．on

She’s talking ____the students, _____they’re talking about very loudly. (  )

A．with, and

B．to, but

C．of, but

D．on, and

July1^st is the birthday of the Communist Party ___China. ( )

A．for

B．of

C．in

填空，选出正确的单词。 
（_______） 1. Look (at, in) this building.  
（_______） 2. (Don’t, Can) call it a small classroom. 
（_______） 3. This (is, are) our library.   
（_______） 4.There (is, are) a meeting room over there.
（_______） 5. Welcome (to, for) our school.
（_______） 6. (Do, Does) you often come to the library.
（_______） 7. There (is, are) many books in the library.
（_______） 8. That (is, are) great.
（_______） 9. We often borrow some book (from, to) our library.