问题
选择题
There are 51 students in Class Three, _____ failed in the test.
A．all of which
B．all of them
C．none of whom
D．none of them
答案
答案：C
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There are 51 students in Class Three, _____ failed in the test.
A．all of which
B．all of them
C．none of whom
D．none of them
答案：C