问题
选择题
In fact, ＿＿＿is a hard job for the police to keep order in an important football match.
A．this
B．that
C．there
D．it
答案
答案：D
it作形式主语,真正主语为不定式复合结构for sb. to do sth.
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In fact, ＿＿＿is a hard job for the police to keep order in an important football match.
A．this
B．that
C．there
D．it
答案：D
it作形式主语,真正主语为不定式复合结构for sb. to do sth.