How long has the lab in your school been___use?A.into B.in C.of D.for答案应该选B,为什么不是A?请说明原因,谢谢~

How long has the lab in your school been___use?A.into B.in C.of D.for答案应该选B,为什么不是A?请说明原因,谢谢~ how long has the meeting()?AbegunBstartedCoverDlasted How long has he been in the hospital?翻译 how long has your brother () the new dictionaryAborrowedBlentC boughtDhad how long has your father worked in the company? How long has the hous been on fire How long----the film ------- A,did begin.B,How long----the film ------- A,did begin.B,has begun C,has been.D,has been 选哪个 为什么 how long has she been the queen这里面has 和she Do you know how long the bus()?A.leaves B.has left C.has been away 26.____you stepped into the lab with your shoes on?You are supposed to take them offbefore you enter it.A.How comeB.How aboutC.How dareD.How long 36、 “___ times has he visited the Great Wall?”“Twice.” A、How manyB、How muchC、How oftenD、How long 1.Do you know ______that bridge is and _____ it has been on the river?A.how long;how far B.how far1.Do you know ______that bridge is and _____ it has been on the river?A.how long;how far B.how far; how often C.how soon;how old D.how long:how long 英语现在完成时 How long has the film been on?为什么要用on?我认为答案是How long has the film been How long ___ the film ___?A did，begin B has，begin C has，been to D has，been How long ___he____ the library book.A.has,borrow B.has,kept C.has,bought D.did ,buy How long ___he____ the library book.A.has,borrow B.has,kept C.has,bought D.did ,buy 翻译How the mind perceives the body has long been a vexing question how long has the game it been since the game of basketball was invented? 翻译