60. The witch the prince a frog once in the fairy tales.
| A．changes; for | B．changed; into | C．changing; into | D．changes; for |
34. Scientists generally agree that Earth’s climate will warm up over the next 50 to 100 years_________ it has warmed in the 20,000 years since Ice Age.
| A．as long as | B．as much as | C．as soon as | D．as well as |
33. — It’s said that Williams will come to help us.
— ______ we depend on him, we have to do most of the work ourselves.
| A．No matter what | B．However much | C．Whatever | D．However |
32. If the economic situation goes on like this, t
here’s a danger______ many factories may have to close down.
| A．as | B．when | C．whether | D．That |
31. —You should make it a rule to do more exercise
in your spare time.
— I think your suggestion really deserves__________.
| A．considering | B．to consider | C．being considered | D．Considered |
30. —What should we do since we can’t make a compromise after lengthy talks.
— ____ you apologize and take back what you’ve said _____ it is all over between us.
| A．Not only; but also | B．Either; or | C．Neither; nor | D．Whether; or |