many of后面加什么词

Many of the species pair for life.

许多物种都终生配对。

Many of them had been initiated into drug use at an early age.

他们中有很多人在早年就被教会了吸毒。

Many of these animals are not found anywhere else.

这些动物中有很多是其他地方没有的。

Local schools supply many of the volunteers.

许多志愿者来自当地学校。

It's a sad fact that many of those killed were children.

让人难以接受的是遇难者中很多是孩子。