-Hi, I didn't know you had come back! Have you finished your teaching in America?-Yes. I______Chinese there for more than two years.
32. ________ have the radio repaired,he’d like to buy a new one.
31. I tried to telephone you, but I couldn’t ____________.
30. They are shocked to find that in this town the traffic rules are not strictly ________.
29. ---Let’s make it next Monday or Tuesday if it’s convenient for you. --- _____ day is OK. I’m free all the time.
28. It is suggested that the project ______ until all the preparations have been made.