问题
_________ happened to be no one in the building when the fire broke out
A:It
B:There
C:This
D:That
B:There
C:This
D:That
正确答案是：
同类题型
Only by shouting at the top of his voice, ___.
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come and have a look at your newiphone 5—Yes, _____!
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He spent _____ money on books and _____ his books are about space and satellite. [ ]