A been
C has been in
have read
has gone
He's been here for less than an hour.
He came here less than an hour ago.
B never那個(gè)--理由----或說(shuō)多種時(shí)態(tài)混在一起的怎么做??？這單元?jiǎng)倓倢W(xué)了現(xiàn)在完成時(shí)，糊里糊涂的，到底怎么判斷呢？動(dòng)作持續(xù)到現(xiàn)在或?qū)ΜF(xiàn)在有影響的用現(xiàn)在完成時(shí)；有明確的表示過(guò)去的時(shí)間狀語(yǔ)，用一般過(guò)去時(shí)。把定義記住，再多練習(xí)，沒(méi)問(wèn)題的，一定行！加油！再請(qǐng)教一題My father __Shanghai twice.a,has been to b,has been inc. has gone tod.has gone inA has been to我爸爸去過(guò)上海兩次。（去了已經(jīng)回來(lái)用：have/has been to；去了還沒(méi)有回來(lái)用：have/has gone to）沒(méi)有has gone in的用法；has been in 意思不一樣，表示人在上海祝你學(xué)習(xí)進(jìn)步！及時(shí)采納喔！