1.it is the ticket of\for F1.
我做到过很多次,答案是for
2.the college attracts students of all _____ (nation)
答案是nationalities,其他的为什么不行eg:nations
3.the radio says it is going to snow \ will snow ,tomorrow.
答案是is going to
计划下雨的?
解释下为什么。
4.官员是official还是officer
5.death是可数名词,什么时候加S,cause many people‘s death 我加了s,老师算错