He ＿＿＿articles for our wall-newspaper these three years, and he ＿＿＿about forty articles. A

He ＿＿＿articles for our wall-newspaper these three years, and he ＿＿＿about forty articles.
A. has been writing； has written
B. has been writing； wrote
C. is writing； has been writing
D. has written； has written

(答案→)A. has been writing； has written B. has been writing； wrote C. is writing； has been writing D. has written； has written解析：由these three years可知应选现在完成进行时，表示“写”从过去一直延续至今，并有可能继续下去；“写了40 篇”用现在完成时，表示到现在为止已完成的动作。

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