We planted          trees last year.A.hundreds ofB.hundred ofC.five hundredsD.fi

We planted          trees last year.A.hundreds ofB.hundred ofC.five hundredsD.fi

题型:不详难度:来源:
We planted          trees last year.
A.hundreds ofB.hundred ofC.five hundredsD.five hundred of

答案
A
解析
hundred、thousand、million等数词与具体数字连用时,用单数形式,后面不加-s;若与of连用表示约数时,后面必须加-s,且不可与数词连用。hundreds of意为“成百上千的”,故选A。
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