E-mail, as well as telephones, ________ an important part in daily communication.
| A．is playing | B．have played | C．are playing | D．play |
32. The mountain is covered with heavy snow and it is ______ only by helicopter.
| A．acceptable | B．available | C．accessible | D．Convenient |
31. Dorothy was always speaking highly of her role in the play, _______ of course, made the others unhappy.
| A．who | B．which | C．this | D．That |
30. With _______ production up 60%, the car company had another excellent year.
| A．ordinary | B．annual | C．common | D．Usual |
29. Instead of leading us a hand, he just stood by, __________
________us when we were in trouble.
A．made fun of  |
B．got tired of | C．getting tired of | D．making fun of |
28. Have you adapted _______ in a different country?
| A．to living | B．to live | C．living | D．in living |