问题标题:
YoulearnedEnglishthreeyearsago.改成现在完成时,
问题描述:
YoulearnedEnglishthreeyearsago.改成现在完成时,
潘颖回答:
YoulearnedEnglishthreeyearsago=YouhavelearnedEnglishforthreeyears.=It'sthreeyearssinceyoubegantolearnEnglish.=IthasbeenthreeyearssinceyoulearnedEnglish.
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