总结：
“Each of”后接名词时，动词通常用单数形式。但若“each of”后接的是复数名词，且强调个体，则动词仍用单数。若“each of”后接的是代词（如them），则动词用复数。
| 情况 | 例子 | 动词形式 |
| each of + 单数名词 | Each of the students is here. | is |
| each of + 复数名词 | Each of the books is interesting. | is |
| each of + 代词 | Each of them is responsible. | is |
| each of + 复数代词 | Each of us has a task. | has |
注意：在口语中，有时会听到复数动词，但在正式写作中应使用单数。
