It is hard for us __(exercise)every day.why?

It is hard for us __(exercise)every day It is hard for us __(exercise)every day.why? 再次问个愚蠢的英语问题Can you __(ask)Mr John __ (bring )a lantern here tomorrowCome on Lin Tao __(wait )for us!It is hard for the little kids__(find )the shopping mall. Doctors say it is good for us.(同义句转换）Doctors say it __ __ for us. 连词成句 is,English,if,us,hard,to,hard,learn,for,it,study,well,easy Doctors say it good for us.=Doctors say it __ __for us.(同意句转换)DOCTORS SAY IT IS GOOD FOR US.DOCTORS SAY IT __ __ FOR US. it is very hard for It is __(usual) for jim to pass the exam because he never works hard. it is hard for me (finish)the nespaper in half an hour(=@__@=) It is i for us to finish this hard job in suth a short time It is necessary for us to work hard every day 同义句 It is hard for us to live in a______ country.这个空怎么填? It is important for us to learn science when we're young We find __ __ __ __ __ __when we're young To eat healthy food is important for us.__ __ important for us __ __ __ __.改为同义句、 this question is very hard.None of us can work it out.(保持原意）this question is ______ hard for ________of us to work out it is good for us It is hard of us to learn/of us to learning/for us to to learn/of us learning哪个对,为什么? it is adj of sb to do与it is adj for sb to do区别例题It is hard _______englishAof us to learn Bfor us to learn Cof us learning Dfor us learning