Use of English- Night Shift Work

Nowadays a lot of people have         [works, jobs, actions] that are not really             [interest, interested, interesting], but many people have to work         [at, in, on, between] the evening, and this is hard enough. When           [nobody, everybody, anybody] else is getting ready to leave out, they         [have to, have, had, had to] go to work, and this puts a lot of psychological stress on them.

Moreover, it is not very healthy because the human body              [is designed, are designed, designed, designing] to be active in the day and to rest in the dark. If this pattern is overturned, it can have a bad effect on a          [persons, person's, persons`] health. So, why               [do people do, people do, do people, do people did] the night shift?

Nowadays many businesses have to offer a 24-hour service, like hotels, delivery companies,       [any, some, no, every] supermarkets are open all night and all day, call centres and hospitals. It is true that some people only need          [a few, few, a little, little] hours of sleep at night but the          [half of, main, majority] need eight hours. Humans are most active in the        [centre, middle, heart] of the day, and the time when they are least able to concentrate and be efficient is         [between, on, at, while] 2 am and 4 am.