for over four years是什么时态
for over four years是什么时态
over the years 是什么时态柡志
four years,over
for twenty-five years和for over twenty-five years在时态用法上一样吗
英语翻译For over four years,KISTCM has been a subject of experim
I___the bike for over four years,A.have bought B.have buy C.
高一英语时态填空题Qing dynasty ___existed___ for over 300 years.简析had
I have lived in London for two years 是什么时态
I have study English for three years?是什么时态
over four years ago的over什么意思
for years 用于什么时态
years ago和over the years用什么时态