____ but he still could not understand it.

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____ but he still could not understand it.
A.Told many times B.Having been told many times
C.He has been told many times
D.Though he had been told many times
请问去掉句中but 后怎么选

因为though,but不能连用,不选D
后半句是could,是过去式,前后时态要一致,不选C
同样道理,B项中,Having been told many times是现在完成进行式,故不选
A 只是省略主语和助动词,全句应是He had been told many times,but he still could not understand it.英语中,若前后主语一致,可省略主句主语和助动词.

____ but he still could not understand it. ___ ,but he still could not understand it （）many times,but he still could not understand it. ___ many times but he still could not understand it.(tell) ______ many times,he still could not understand it. ____ many times but he still couldn't understand it 1.___many times,but he still couldn't understand it. _____scores of times,but he still couldn't understand it. ________many times,but he still couldn't understand it. Then he spoke slowly, but I could not understand him ( )many times, but he still could not rem 一、It's ____to work ,but he still works ____ .