21.That radio company is so big that it has a lot of _______ in foreign countries.
A. introducers
B.instructors
C.conductors
D.agents

22.I am afraid it was a _______ for you to do this.
A.bother
B.bitter
C.bake
D.band

23During these ten years, many new methods have been _______ in the field of foreigh language teaching.
A.adopted
B.adapted
C.alarmed
D.aided

24.That is _______ behavior and nobody likes it.
A.whistle
B.structural
C.selfish
D.fur

25.Yesterday was such a _______ day we decided to go for a drive.
A.glorious
B.dynamical
C.avenue
D.invitation

26.Two lines can form an infinite number of _______.
A.ankles
B.angles
C.angels
D.adults

27.He needed a _______ operation.
A.missile
B.indirect
C.income
D.minor

28.Most people say that the new film is a ______.
A.mystery
B.smart
C.furniture
D.custom

29.They serve _______ food in this restaurant.
A.castle
B.glue
C.delicious
D.wing

30.We are leaving this afternoon, but we have not _______ our suitcases yet.
A.trapped
B.insulted
C.packed
D.invited

答案:
21.D 22.A 23.A 24.C 25.A

 26.B 27.D 28.A 29.C 30.C