应该怎样改以下句子的强调部分为强调句型?

问题描述:

应该怎样改以下句子的强调部分为强调句型?
All the members held a meeting in the club yesterday
强调部分为members 时应该怎么样改成强调句型?
还有..用 held 当被强调部分时 怎么改?

It's all the members who held a meeting in the club yesterday.