I have been studying computer for years and I still ___.A．haveB．doC．have beenD．a_刷题宝

题干

I have been studying computer for years and I still ___.

A．have

B．do

C．have been

D．am

上一题下一题 0.64难度单项选择更新时间:2014-01-09 09:59:42

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