The conference has been held to discuss the effects of tourism ________ the wildlife in the area．A.in B.on C.at D.with

The conference has been held to discuss the effects of tourism______ the wildlife in the area.A.in B.on C.at D.with 要理由哦 The conference has been held to discuss the effects of tourism ________ the wildlife in the area．A.in B.on C.at D.with （ ）.--We are late for the conference.It_____ for ten minutes.--So it has.Hope the manuagerwon't be angy.A.has started B.has been on C.has been over D.began She_____Shanghai to attend an important conference in japan the week after nextA)leaves B)left C)will leave D)has left Cleaning the Conference Room attend the conference in cover the conference是什么意思 at the conference attand the conference professor wanted to know ___a:when the conference would begin b:when the conference will begin 答案和具体原因 The conference has lasted for five days 这句中能否看出会议是否结束? conference conference conference conference conference conceal the conference 什么意思 ...the conference 介词是什么atinon