What do you think of the film— The story ____is good, but I felt ____because of its length—over three hours.

Having finished her project, she was invited by the school ________ to the new students.[ ]

The store sells sweaters _____ a very good price. Wecan buy one ______ 40 yuan.

We can _____books ___ the bookstore。

Not until all the fish died in the river, _______ how serious the pollution is.[ ]