How do you say

He and his friends organize an outing once a week.

..in Chinese?

他和他的朋友们每周都会组织一次户外活动。

tā hé tā de péng yǒu men měi zhōu dōu huì zǔ zhī yī cì hù wài huó dòng 。

How do you say "Zhang Ming will spend a month attending an exchange program at Cambridge next month." in Chinese?