问题
选择题
happened to be no one in the building when the fire broke out.
A．It
B．There
C．This
D．That
答案
答案：B
考查代词。there be 的一种形式。There happened to be 碰巧有。句意为：火灾发生时，碰巧楼里没人。
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happened to be no one in the building when the fire broke out.
A．It
B．There
C．This
D．That
答案：B
考查代词。there be 的一种形式。There happened to be 碰巧有。句意为：火灾发生时，碰巧楼里没人。