We can see( )trees on the hill.A` thousand B`thousand of C`thousands D`thousands of

问题描述:

We can see( )trees on the hill.A` thousand B`thousand of C`thousands D`thousands of

选项中排除B 由trees排除A、C 选D

D thousand 用做约数的时候用复数形式,且和OF连用 用做确数的时候不于OF连用.