— Could you meet me at the airport?— I'd like to,but I'm afraid I ______ a very important meeting when you return.
22. In time of war, different parties tend to ______ their political differences to fight against foreign invaders shoulder to shoulder.
21. ----Do you often enjoy listening to the rock music in your spare time? ----No, I don’t ______ rock music. It’s much too noisy for my taste.
35. —Tom took away our teacher’s cell phone without being permitted. —Really? I can’t imagine that he _______ have done such a thing.
33. _______, I have never seen anyone who’s as capable as John.
31. All the things ______ must be done well.