Why ____it get colder when we go up a mountain ?We are getting nearer to the sun !
| A．ought to | B．would | C．should | D． must |
–When can I get the result of the test, sir?
–You ____ have it next Friday.
| A．could | B．shall | C．must | D．may |
No words can ____ his feelings when the money dropping on the street was sent back to him.
| A．control | B．convey | C．exchange | D．affect |
The problem may not____, but there's no harm to be careful.
| A．arise | B．reduce | C．increase | D．rise |
This is really a good birthday gift for a young girl, ____at a proper price but fashionable.
| A．one | B．anyone | C．that | D．everything |
These are the words ____ you must attach great importance when you write the essay.
| A．in which | B．to which | C．which | D．that |