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[主观题]
Lucy ______ English for six years by the end of last year.A.had learnedB.learnedC.has lear
Lucy ______ English for six years by the end of last year.
A.had learned
B.learned
C.has learned
D.could have learned
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Lucy ______ English for six years by the end of last year.
A.had learned
B.learned
C.has learned
D.could have learned
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