We must try our best to the river being polluted any more.
| A．separate | B．keep | C．prevent | D．guard |
- Sorry, Joe, I didn't mean to …
- Don't call me "Joe". I'm Mr Parker to you, and _____ you forget it !
| A． | do | B． | didn't | C． | did | D． | don't |
— When will you come to see me, Dad ?
— I will go to see you when you _____ the training course.
| A．will have finished | B．will finish | C．are finishing | D．finish |
The five rings on the Olympic flag ______ the five continents that are joined together in the Olympic Games.
| A．belong to | B．stand for | C．take apart | D．pack up |
The new smart robot by Sony, with a camera “eye” on its head, can __________ colors and human faces.
| A．organize | B．recognize | C．determine | D．judge |
All the girls swam in the lake except two, who _____ halfway.
| A．gave off | B．gave up | C．gave away | D．gave out |
According to the law, all foreigners have to ________ with the local police within two weeks of arrival.
| A．associate | B．dispute |
| C．negotiate | D．register |
Jenny kept asking me to use my bicycle ,and I finally _______.
| A．put down | B．gave in | C．came up | D．gave out |
Hearing the boring news, I was too distracted （心烦意乱）to my attention on my homework.
| A．attract | B．draw | C．concentrate | D．pay |
Los Angeles Times reported that researchers may have found a way to ______ human life by changing certain genes, so that humans might expect to live twice as long.
| A．extend | B．preserve |
| C．multiply | D．transform |
It is impossible to ________one’s goal without working hard.
| A．achieve | B．get | C．arrive | D．make |
Some plants are so difficult to grow that they can only ______ in a perfectly clean environment.
| A．communicate | B．exchange |
| C．survive | D．afford |
I can ______ the house being untidy, but I hate it if it's not clean．
| A．come up with | B．put up with |
| C．turn to | D．stick to |
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