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题目内容
（河南工业大学-土木工程-大学英语2）
单选题) I don’t smoke now, but I __for almost ten yearsIt is said that China has been a member of WTO since 11?December?2001.(本题1.0分)
A、 ever smoked
B、 have ever smoked
C、 had ever smoked
D、 was ever smoking
A、 ever smoked
B、 have ever smoked
C、 had ever smoked
D、 was ever smoking
参考答案