重写句子：Theteacherreturnedthehomework.Theteachernoticedtheerror.(complexsentence)
The teacher returned the homework when(after) she noticed the error.
暂无解析
Havingdecidedtorentaflat,we________contactinghousingagenciesinthecity.
重写句子：NotuntilhecrossedthelineandfeltthetapesnapagainsthischestdidJohnsonknowhehadwontherace.(loosesentence)
Itmakesgood________tobringanumbrella;itseemstoberainingtoday.