问题
选择题
He_____ articles for our wall-newspaper these years, and he____ about thirty articles.
A．has written; wrote
B．has been writing; wrote
C．is writing; has been writing
D．has been writing; has written
答案
答案：D
题目分析：第一个空表示动作从过去某一时间开始一直延续到现在，并且有可能持续下去，故用现在完成进行时；第二个空表示自过去某一时刻到说话时这段时间中的经历，用现在完成时。
点评：现在完成时往往强调动作的完成，现在完成进行时却强调动作的延续。