Pine trees, of which there are almost one hundred ____, are found throughout the North Temperate Zone.
| A．species | B．samples | C．specimens | D．Standards |
—What’s the best way to ____ the disease caused by biting insects?
——Ah, don’ t bite any!
| A．protect | B．prevent | C．keep | D．kill |
The people of New Orleans need to know they are not ____, and there are people near and far who will not let them homeless．
| A．forgotten | B．to forget | C．forgetting | D．being forgotten |
Putting a candle in the window ___ a traditional practice in many cultures, ____ has a variety of meanings in the United States．
| A．was; that | B．is; it | C．has been; which | D．had been; which |
Playing a sport ismore than feeling tired．There are ____ effects that you feel after you play it．
| A．few; some | B．less; many | C．little; a lot of | D．much; many |
Millions of people are still homeless．Besides, there isn’t the most basic ____ from the Red Cross．
| A．medicine | B．equipment | C．aid | D．material |