----- Sorry, Ann. I’m afraid that I can’t go to the magic show by David Copperfield with me. ----- ________ Who knows when he will be back here again?
38. Eric taught folk music in a local school for one year, ______ he spent some time abroad studying jazz.
37. No one has come up with a better explanation of why dinosaurs ______.
36. —Was the guest’s speech interesting?—Not at all. He was at a ______ and didn’t know what to say when others asked him questions.
35. —What’s that noise? —Oh, I forgot to tell you. Your bike ______.
34. English is considered as a(n) _______ language, and it is no surprise that there are so many people in the world learning it.