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题目内容
（国家开放大学开放英语）
There are often advertisements _________________ to other websites on the Internet.
单选题 (2 分) 2分
A.
lead
B.
led
C.
leading
D.
to lead
单选题 (2 分) 2分
A.
lead
B.
led
C.
leading
D.
to lead
参考答案
