1.If you want to keep ( healthy)(health),you should eat less and take more exerciskeep 后加形容词2.She (has worked)(work) here since 2003. since前面要用完成时态3.So far,our country ( has sent )(send) up many satelites into space. so far 需要用完成时态4.People (did not use)(not use) computers widely twenty years ago.5.Mr Wang is one of...
