问题
More than 20 people ________ in traffic accidents ________ last week.
A:that
B:what
C:if
D:whether;
B:what
C:if
D:whether;
正确答案是：
同类题型
It is _____ to cycle around Guilin.
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Tom works hard at English.—____, and _____.
____is known to us all is that the 2008 Olympic Games will take place in Beijing.
Going camping in the desert will not be enjoyable you have prepared well.