When the plane arrived, some of the detectives were waiting inside the main building中some of the 是什么意思?OF在这里起什么作用不加OF可以吗？它们是一个短语吗？

I'm here could tell me______,please A.when does the first bus arriveB.when the first bus arriveC.when did the first bus arriveD.when will the first bus arrive I'm here could tell me______,please A.when does the first bus arriveB.when the first bus arriveC.when did the first bus arriveD.when will the first bus arrive when where the plane arrive/arrive in the plane when we got to the airport Do you know _____?A.when the plane takes offB.when does the plane take offC.when will the plane take off When did they invent the plane?改为被动语态. when did they make the model plane改被动句 could you please tell me when the plane -------(take off) It was raining hard when the plane a___ in Shanghai Have you_____(查明)when the next plane takes off? when the plane takes off这句话是什么意思 hao many people are there in the plane when it When did the plane.A.getB.get toC.reachD.arrive When a bird flew to the plane,it lost c_____ Do you know when the plane takes off?为什么不用将来时when the plane will take off When the plane was waiting at the airport a big snake climbed up the steps and into the plane.It The plane hasn't arrived yet.Could you tell me________?A.why the plane is late B.how is the plane lateC.when will the plane arrive D.that the plane arrives (When)I fasten my seat belt.The plane took off.把他们一句话,加上When.