问题
选择题
They couldn’t say _____ it was _____ troubled them.
A．that; what
B．what; what
C．what; that
D．what; who
答案
答案：C
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They couldn’t say _____ it was _____ troubled them.
A．that; what
B．what; what
C．what; that
D．what; who
答案：C
