40.
We’ve tested one hundred types
of boots, ______ is completely waterproof.
A. no one of which B. no one of them C. none of which D. none of them
Keys:
01-05 C B B D B
06-10 B A B D C
11-15 D C D C D
16-20 C C A D A
21-25 B B A C D
26-30 D B D C D
31-35 A C C B C
36-40 A C D D C