英语翻译Several weeks ago,I was doing homework with my son,who is in the third grade,and he kept standing up from his chair to go over the math problems.I kept asking him to sit down,telling him that he would concentrate better.He sat but seconds

several weeks ago 换现在完成时,是several weeks before还是for several weeks She had several weeks sewing.She had several weeks to sewing.哪个对简单说明理由 英语翻译two weeks? We can - (see) the flower in several weeks. She died for several weeks 哪里错了,求改错 I bought several books two weeks ago.（改为同义句）I --------- ---------- several books for two weeks. 英语翻译develop several options 英语翻译Hi,You are more then 3 weeks over time,all accounts on the old server are deleted,we have send several mails to all people on that server...就这么多 英语翻译尽量通顺一点,不要翻译器的,非常非常感谢.Some foods can be kept fresh this way for several weeks.People throughout Nigeria began using the invention.And it became popular with farmers in other African countries.Mohammed Ba 英语翻译Singapore Airlines has an excellent safety record.But a grounding of more than several weeks could prove terminal for Tiger.不好意思，忘记说了，Tiger是虎航的意思。 weeks. weeks Several weeks had gone by I realized the painting was missing. several weeks had gone by_____i realiize the painting was missing.Aas Bbefore Csince Dwhen I ____(watch) TV for several weeks last year.说明语法 He has been ill for several weeks,so he has ______ in learning Maths. Jack has been___(咳嗽）for several weeks.填什么?为什么? 英语翻译Mr.Bush's 18-minute address culminated several weeks of political stagecraft that included several speechs and a presidential trip to Iraq but also relied heavily on Gen.David H Petraeus,the top American commander in Iraq,to make the publ