10.Helen ___ her key in the office so she had to wait until her husband___ home.A.has left,comes B.left,had comeC.had left,came D.had left,would come详细解析为什么选C

10.Helen ___ her key in the office so she had to wait until her husband___ home.A.has left,comes B.left,had comeC.had left,came D.had left,would come详细解析为什么选C Helen ,name ,her ,first ,is 介词填空 【很简单的】1.Doctors are looking ___ Helen carefully.2.Mary takes __ her mother Helen asked many people for help,___ no one answered her.A、so B、but C、however D、though 英语改错并说明原因Helen left her key in the office,so she had to wait until her husband come home.改成coming不行?util后面接的是从句?从哪可以看出是个从句? 用所给的词的正确形式填空（小学英语）1、There ___ a lot of apples on the tree .(be)2、Helen's father shows her how to ___cows.(milk)3、Look,Helen is ___ cows.(milk)4、Helen has a lot of hobbies .She likes ___ flowers and col-lect 用适当的介词填空 【很简单的】1.Doctors are looking ___ Helen carefully.2.Mary takes __ her mother Her name is Helen Brown,so we can call her < >. helen is talking( )her parents( )her birthday party. find the key ___ his bicycle介词 Helen 把下列句子改成一般疑问句.1.Nancy likes this vase.____ ___ ____ this vase?2.Helen and her brother like reading.____Helen and her brother ____ ____? 一道英语过去完成时题~Helen ________ her key in the office so she had to wait until her husband _______ home.A.has left; comes B.left; had come C.had left; came D.had left; would come第二个空填什么时态比较正确?为什么第二个 whose key ring is this?(同意句） whose does this key ring ___ ___ Helen’s family ( )(be) at home last Sunday.Helen ( )(visit)her grandparent on Sunday. Helen can't find her backpack.改成同义句改成：Helen doesn't know____her backpack_______. Jim is six.Helen is eight.（合并句子） Jim___ ___ than Helen. ____ made her mother very angry.A.Helen's married Jack B.Helen has married Jack C.Helen marrying Jack D.Helen's marrying Jack