They may have been（ thinking ）about their work all day.这是做的首字母,为啥要填think的ing形式.

They have been _____ about what may have caused the fire.(theory) may have been怎么用 Where have they been? 英语翻译they may have been so conditioned to being on top that anying less disappoints Any idea where they may have been made这句话的意思是? Where are the Greens,may I ask?Well,they to England,They there for nearly a week now.Where are the Greens,may I ask?Well,they to England,They there for nearly a week now.A,have been,have been,B,have been,have gone.C,have gone.have been,D,have gone.ha They have a____ been there You may have been in my heart. may have been和may be怎么翻译 Where are the Greens ,may I ask?---------Well,they __________to England.They have been therefor nearly a week now.a have been b are going to c have gone d wiil go ---Where are the Grees,may I ask?---Well,they ________to England.They have been there for nearly a week now.A.have been B.are going C.have gone D.will go为什么 May I ask where the Greens are?Weel,they ___England.They have been there for nearly five days.拜A.are going to B.will go to C.have been to D.have gone to may have been和 must have been been是不是不仅表示被动? may have been 和may have done的区别,特别是may have been doing和may have done的区别,他们都表对过去推测啊? what have they been doing 是什么时态 What places have they been?怎么翻译? where have they been?是现在完成时吗? they have been in kate's for