Researchers have invented _________ ears that look and act like the real ears, giving hope to patients missing all or part of their ears.
| A．technological | B．artificial |
| C．false | D．magical |
-----Why did she spend so much time searching shop after shop only for a blouse?
-----Oh, she was very ________ about her clothes.
| A．pleased | B．particular | C．worried | D．curious |
Bad habits, _________ formed, are difficult to get rid of.
| A．and | B．or | C．once | D．but |
There will be a special prize for anybody who _________ a TV set in our shop
in the next two weeks.
| A．would order | B．orders | C．ordered | D．order |
There are altogether eleven books on the shelf, __________ five are mine.
| A．on which | B．in which | C．of which | D．from which |
–---Dear me! I’ve been in America for a month.
-----________ you are settled, why don’t you take up some serious study ?
| A．If | B．Now that | C．When | D．Even if |