eachof后加什么谓语

　　Each of us must take responsibility for our own actions.

　　我们每个人都必须对自己的行为负责。

　　Each of the main parties fielded more than 300 candidates.

　　每个主要政党都选派出300多名候选人。

　　Each of the authors of the tapes is an expert in his field.

　　这些磁带的每一位作者都是其领域内的专家。