(   ) 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可知是一般過去時,fish在本句表復數(shù),故用were;后面根據(jù)mm可知是一般現(xiàn)在時,water作主語用is。故選B。

題目來源:仁愛英語同步練習簿九年級上下冊 > Topic 1 Pollution has caused too many problems.

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