How many ______ known altogether?A.species of fishes areB.species of fish isC.specieses of
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How many ______ known altogether?
A.species of fishes are
B.species of fish is
C.specieses of fish are
D.species of fish are
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正确答案:D
解析:species单复数形式相同,不存在specieses的形式。本句中从意思上判断应为复数,因此后面的动词应用are。而fish通常也没有复数形式变化,虽然有fishes的形式存在,但它只在强调各种不同种类的鱼时才用,如:to。 eat two fish(吃两条鱼),to catch a lot of fishes(捕到多种鱼)。
