over ( )years ago, there were no humans here. 用two million还是millions of,为什么?over ( )years ago, there were no humans here.用two million还是millions of,为什么?

over a hundred years ago 中over是什么词性? over four years ago的over什么意思 over 100 years ago这里的over什么意思? years ago和over the years用什么时态 over 80 years ago的同义句是什么 They lived over sixty thousand years ago.同义句 My grandfather is over sixty.He r___ two years ago His father cames back over sixty years ago.同义句 Over thirty years ago he left his hometown .Over 可以换成什么 mr green came to china over two years ago mr green ( )to china ( ) ( )two years ago 改为同义句 For over ten years ago. 是用How soon 还是How long 提问.For over ten years ago.是用How soon 还是How long 提问.为什么 Many years ago,people didn't have any transportation. two years ago ,he went t---- the forest by himself 1. I can't remember ___I could years ago.1. I can't remember ___I could years ago.a.as many words as b.as more words as c.so many words then d.so more words than 2.You ___hand in your homework now.I can wait till class is over.a. mustn't b. can 英语翻译A little over a year ago,Ibegan training to swim the English Channel this September.I will be 58 years old then.I won't do as one channel swimmer did a few years ago.He tired for years,made the arrangrments and even went to England weeks they came here over ten years ago的同义句they came here ____ ____ten yeas ago it is said that ___umbrella was invented over four thousand years ago by chi they built the old house over one hundred years ago改为被动语态