What will we do if we want to develop our village ?—- A lot of roads ______. I think .
There are ____ sixty students in our class.[ ]
I think _____ of the materials I listen to at the beginning of the exam _____easy.
_______ I go on a trip to Shanghai?— Yes, you may.
Did you borrow the book from the library ? —Yes. I _______ it for three days. I’ll return it this afternoon.