英语问题it is highly suggested taking exercise every day这里用了什么句式

taking exercise every day is good for our healthy的同义句 It is hard for us __(exercise)every day.why? i think it is ()to take some exercise every day it is good for us to take exercise every day It is hard for us __(exercise)every day it is good ___ eye exercise every day . 改错：It is important for swimmer to exercise every day. it is really___to do morning exercise every day. 三道英语小题,1.Taking exercise every day makes me_____.A.health B. Doing exercise every day is necessary for students 该用it做形式主语 It is suggested that every citizen_____a new Many people b_____ it is i_______ to exercise every day.此题求解