2. 外语
  3. Lucy ______ English for six years by the end of last year.

Lucy ______ English for six years by the end of last year.

admin2009-07-28  72
问题 Lucy ______ English for six years by the end of last year.
选项 A、had learned
B、learned
C、has learned
D、could have learned
答案A
解析 在by the end of+过去时间状语结构中，主句谓语动词要用过去完成时。
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