Unluckily, he was soon told _____ he discovered was unimportant to them. [ ]
A. what why
B. that why
C. what that
D. why what
答案:D
Unluckily, he was soon told _____ he discovered was unimportant to them. [ ]
A. what why
B. that why
C. what that
D. why what
答案:D