互動封閉仿真課堂1、智能交互 2、電子板書式視頻教學 3、5分鐘一次互動問答 4、封閉課堂
30. They have been waiting for many hours to see the singer ,but the airplane must have been______.
A. behind the times B. behind schedule C. ahead of time D. in no time
31. The boy fell asleep ________doing his homework..
A. when B. as C. while D. since
32. I think you’ll find the trip_________!
A. interesting B. interested C. be interesting D. be interested
33. Book Three of Vocational English 12 units.
A. is made of B. are made of C. is made up of D. are made up of
34. I’ll see_______it.
A.what can I do about B. how I can do about
C. what I can do about D. how can I do about