It is about 5 years () he came to our school

It is about 5 years () he came to our school It is there years We came to study in our school. A when B a since he came to our school 3years ago,Tom has ____ a smart, when did he come/came to our school?About half an four ago.选 提一些英语问题It's twenty years < >he came to work in this school. 短文改错,Dear tom It is six years since you came to our city for It is five years since I came to this school.改为同义句 It was three months since he came to our school改错 He came to the school three years ago,改为现在完成时 1 He came to our village two years ago.=He our village since （ ）is it from our school to the nearest supermarket?About 10 ( )it is from our school to xidan mall?About half an hour's