(   ) 2. There      lots of fish in the river in the past,but now the water      so

dirty that we can't see any fish.

A.  are;is

B.  were;is

C.  was;was

D.  is;is

 2. B根據(jù)in the past可知是一般過(guò)去時(shí),fish在本句表復(fù)數(shù),故用were;后面根據(jù)mm可知是一般現(xiàn)在時(shí),water作主語(yǔ)用is。故選B。

題目來(lái)源:仁愛(ài)英語(yǔ)同步練習(xí)簿九年級(jí)上下冊(cè) > Topic 1 Pollution has caused too many problems.

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