Mr Smith __________ at this school since he ________ Xiamen .
A.has been teach,came B.has been teaching,came
C.taught,came D.has been teaching,has come
人气：331 ℃ 时间：2019-11-07 21:23:28
解答
选B.1空:现在完成进行时；2空：一般过去时.
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