— Susan, would you like to go hiking with us this afternoon?— I'd love to, but I study for a test.A. may B. have to C. can
----_____you _____your drawing? ----Not yet ! I’ll do it at once.
The Yellow River is one of ________________in the world.
---Why not_____ us ?----Because I have a lot of work______.
He____25 yuan buying this new book yesterday afternoon.
It’s time for supper now. Let’s it.