I am a police officer and that' hard( ) 1.work 2.job 3.works 4.jo_英语解答

I am a police officer and that' hard( ) 1.work 2.job 3.works 4.jobs
说明考点,时间紧迫,

人气：252 ℃　时间：2020-01-29 06:07:46

解答

hard work
工作很不容易.
希望回答对您有所帮助,请及时采纳,多谢!work在这里是动词还是名词呀？名词