—The cars give off a great deal of waste gas into streets. —Yes. But I'm sure something will be done to __________ air pollution.
| A．reduce | B．remove | C．collect | D．warn |
相关试题
．Your daughter much taller than I expected．
| A．is growing | B．grows | C．i s grown |
D．has grown |
Katy has lived in New York for several years．she doesn’t get used to the life there
| A．Because | B．Unless | C．Although | D．Until |
一Why is John so poor at his lessons?
一He never studies，he plays computer games all day
| A．However | B．Except | C．Instead | D．Anyway |
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