组织活动的英语表达可以根据不同的语境和需要采取不同的形式。以下是一些常见的表达方式：

organize an activity

organize the activity

help the teacher with organizing English activities

plan an activity

conduct activities

organize class activities

attend class activities

organize activities of a certain type

organize xx activity

club activities

campus activity

extra-curricular activities

school activity

community activity

这些表达方式可以根据具体情况进行选择和调整，以确保准确传达组织活动的意图和内容。