填空题

They were believed (discuss)（）the problem beforehand.

【参考答案】

to have discussed
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填空题
The piece of music was composed by a very famous blind (music)（）
单项选择题
What are the two speakers doing（）

A．They are talking about the scenery.
B．They are enjoying the flowers.
C．They are arguing about something.
D．They are climbing up the mountain.
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