英语时态问题不懂!Nancy is supposed to (...)做完化学实验at least two weeks ago?答案为什么是have finished her /the chemical experiment?为什么用完成时?这里不是有two weeks 应该用过去时态啊!

英语时态问题不懂!Nancy is supposed to (...)做完化学实验at least two weeks ago?答案为什么是have finished her /the chemical experiment?为什么用完成时?这里不是有two weeks 应该用过去时态啊! 英语从句的时态问题啊,我不懂主句与从句的时态关系, who is (w )yellow today su yang andwho is (w )yellow todaysu yang and Nancy 怎样区别英语时态问题 how,is,old,Nancy 英语连词成句拜托了 英语 一小句时态问题He always says he is going to find a new job.这句是什么时态呢 英语：同义句 Helen is 150 centimetres tall . Nancy is 150 centimetres tall ,too.Helen is ____ ____ ____ Nancy. 英语设计问句W————————————————————?Nancy is taller than Su Hai.W————————————————————?Jim is good at English.W_________________________________?I got up at 7:30 this 英语 一般将来时态改写句子5.Nancy is going to go camping.(该否定句)Nancy ( ) going to go camping.6.I’ll go and join them.(该否定句)I ( ) go ( ) join them.7.I’m going to get up at 6:30 tomorrow.(改一般疑问句)( ) ( ) ( ) to Is my car ready yet时态问题 一些英语题目（说为什么哦）翻译：那个一定不是NANCY选择]schools ( )allow students at least an hour a day for sports.A would B might C should D could are you going to Beijing by piane?it is fast ,but expensive so i am not su 六年级英语根据句意用所给动词的正确形式填空.⒈Nancy()(dance) just now,but she is()(sing) now.⒉What () (do) you do last Friday?I ()(go) to the zoo.⒊()(Are) there any apple trees last year?Yes there()(are).⒋ Su Yang often ()( 英语问题,从句用什么时态 英语：Sh Hai is Su Yang's twin sister.Sh Hai and Su Yang ____ ____ ____.同义句转换 不懂英语my name is, is是现在时态,为什么可以用在未来时态?如：Su Yang's dad is going to New York next week.中的 is,为什么可以用在未来时态,因该用well才对啊? 帮忙找英语句子语法时态错误,It is must be fun that we enjoy the beautiful view强调句,动词时态好像有问题, this,nancy,balloon,for,is