though without hans ,mafuxing ___chinese language in a rural primary school in huangzhong,qinghai for 30years.
though without hans ,mafuxing ___chinese language in a rural primary school in huangzhong,qinghai for 30years.
A would teach B will have taught C had been teaching D has been teaching
the answer is D ,tell me why ,and why not use the others?
A would teach B will have taught C had been teaching D has been teaching
the answer is D ,tell me why ,and why not use the others?
英語人氣：524 ℃時間：2020-06-05 05:18:21
優(yōu)質(zhì)解答
for后面加時間,表示一段時間,所以要用完成時.A,B排除.have been doing表示一個行為從過去一直持續(xù)到現(xiàn)在,到目前為止還沒有結(jié)束,并有可能繼續(xù)下去.had been doing表示過去某個時間之前發(fā)生的動作
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