Before a problem can be solved, it must be obvious _____ the problem itself is.

题型：湖南省高考真题难度：来源：

Before a problem can be solved, it must be obvious _____ the problem itself is. [ ]
A. what
B. that
C. which
D. why

答案

举一反三

It was never clear _____ the man hadn"t reported the accident sooner. [ ]
A. that
B. how
C. when
D. why

题型：江苏高考真题难度：| 查看答案

Is it, in your opinion, possible _____ new measures will be taken to improve the terrible traffic? [ ]
A. whether
B. what
C. when
D. that

题型：山东省模拟题难度：| 查看答案

_____ it is a good solution depends on how you look at it. [ ]
A. That
B. What
C. Whether
D. Why

题型：模拟题难度：| 查看答案

At the evening party the host said _____ was able to solve the riddle could get a nice present as a reward. [ ]
A. whoever
B. who
C. no matter who
D. whomever

题型：安徽省模拟题难度：| 查看答案

_____ we will do is to leave a note to tell mum we will be back late. [ ]
A. Whether
B. What
C. That
D. How

题型：北京期末题难度：| 查看答案