The old lady’s hand shook frequently.She explained to her doctor ______ this shaking had begun half a year before, and, ______ only because of this, she had been forced to give up her job.
| A．when;how |
| B．how;when |
| C．how;how |
| D．why;why |
In dealing with public relations, we should make every effort to prevent the _______ in personality.
| A．contact | B．contrast | C．connection | D．conflict |
If you _______ a mistake in reviewing the report, please bring it to my attention.
| A．come along | B．come across | C．come around to | D．come about |
This is a very special flower and it can _______ a strong sweet perfume at night.
| A．give in | B．give up | C．give out | D．give away |
In the botanical garden we can find a(n) _______ of plants that range from tall trees to small flowers.
| A．species | B．groups | C．amount | D．variety |
—You can’t finish the book in less than an hour, I suppose?
—______.
| A．Yes, I’m sure I can | B．No, hardly |
| C．Sorry, I can’t | D．I don’t think I can |