D 用現(xiàn)在完成進(jìn)行時(shí)態(tài),表示過去已經(jīng)開始,一直持續(xù)到現(xiàn)在,中間沒有停頓,可能會(huì)繼續(xù)持續(xù)下去.
后面有since短語(yǔ),考慮用 現(xiàn)在完成時(shí)態(tài),選項(xiàng)中沒有現(xiàn)在完成時(shí)態(tài),所以選擇現(xiàn)在完成進(jìn)行時(shí)態(tài).
Robert ____english in this school since he came to Beijing.A teaches B taught C has been taught
Robert ____english in this school since he came to Beijing.A teaches B taught C has been taught
D has been teaching
選哪個(gè),為什么?
D has been teaching
選哪個(gè),為什么?
其他人氣：790 ℃時(shí)間：2019-08-21 23:01:09
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