several weeks ago 换现在完成时,是several weeks before还是for several weeks

several weeks ago 换现在完成时,是several weeks before还是for several weeks I bought several books two weeks ago.（改为同义句）I --------- ---------- several books for two weeks. several years ago He _____Tom two weeks ago. 谁有这篇文章,谢谢了several weeks ago the newspaper filled with the story of students at Fujian university who had been poisonedto death by his roommate She had several weeks sewing.She had several weeks to sewing.哪个对简单说明理由 two weeks before和two weeks ago区别! 英文翻译Two weeks earlier/two weeks ago的分别 a little over 2 weeks ago two weeks ago = for （　　）（　　） I____(hear) the news two weeks ago. several years ago,well-known的意思, Several years ago,a television reporter several days ago与什么时态连用 My sister finished high school two weeks ago.对two weeks ago提问 We can - (see) the flower in several weeks. She died for several weeks 哪里错了,求改错 Uncle Wang flew to New York several days ago.（对several days ago提问）