问题
选择题
Alice received an invitation from her boss，________ came as a surprise.
A．it
B．that
C．which
D．he
答案
此为非限定性从句，不能用that修饰，而用which，it和he都使后句成为句子，两个独立的句子不能单以逗号连接，况且选he句意不通。
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Alice received an invitation from her boss，________ came as a surprise.
A．it
B．that
C．which
D．he
此为非限定性从句，不能用that修饰，而用which，it和he都使后句成为句子，两个独立的句子不能单以逗号连接，况且选he句意不通。