The factory ______ its waste into the river, but now it deals with the waste in a new way.
| A．used to dump | B．is used to dump | C．used to dumping | D．is used to dumping |
I don’t know the man _______ is looking after the old woman.
| A．that | B．what | C．which | D．/ |
--____ you come to my birthday party tomorrow, Robert?
--I’m afraid not. I have to study for my exam.
| A．Must | B．Should | C．Can | D．Need |
Parents will ______ more and more money on their children’s education.
| A．take | B．cost | C．spend | D．pay |
Our English teacher is often _______ to give a talk on English study. He is popular.
| A．advised | B．created | C．invited | D．refused |
_______ the novel, the hero disappeared again.
| A．At the beginning of | B．At the end of |
| C．At the top of | D．At the bottom of |