跟卡卡逆袭高考英语:语法填空&短文改错常用“现在完成时句型” 1. 主语+ 现在完成时 +since +主语+一般过去时 2.It is(has been) + 一段时间+ since +主语+ 一般过去时 3. It /This/That is the first (序数词) time that sb have done sth 4. It /This/That is the +最高级 +名词 that sb have done sth