“The impact will only grow Iran’s leaders decide to change course and meet their international obligations,” US Secretary of State Clinton warned．
| A．in case that | B．provided that | C．unless | D．until |
Only one of these books is ________.
| A．worth to read | B．worth being read |
| C．worth of reading | D．worth reading |
I am not appealing for myself. I am appealing ________ the millions and millions of fresh college graduates.
| A．on behalf of | B．in the opinion of | C．with a view of | D．in terms of |
Once you get 
_______ something, it is very hard to ________.
| A．addicted to; rid yourself of it | B．used to; rid yourself of it |
| C．accustomed to; be got rid of it | D．addicted to; get away with it |
That was really a splendid evening. It’s years ________ I enjoyed myself so much.
| A．when | B．that | C．before | D．since |
58. Sometimes, the entrance tickets are _______ free of charge from the university.
| A．available | B．valuable | C．imaginable | D．comfortable |