Yes, they are

都是───All of them;他们───they

All of them had addresses and stamps on them.───所有卡上都已写好了地址,贴足了邮票.

All of them are experts in their chosen field.───他们在各自选定的专业中都是专家。

All of them had run afoul of the law at some time or other.───他们所有人都曾触犯过法律。

I like almost all of them.───我差不多所有的都喜欢。

Not all of them were acting out of self-interest.───他们当中，并非所有人的行动都是出于利己的目的。

The news sobered all of them.───那消息使他们全都冷静下来.

We saw almost all of them.───我们差不多见到了他们的全体.

All of them were French possessions at one time or another.───它们都曾是法国的领地。

Its contents were visible to all of them.

All of them had pilgrimaged to the capital.

The news sobered all of them.

One after another, all of them fell asleep.

She had the most money of all of them.