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________ is known to everybody, the moon travels round the earth once every month．

This is Mr．Smith, ________ I think has something interesting to tell you．

The school _____ my father teaches is a world-famous one, _____ was set up 100 years ago．

The factory ____ the students visited last week is the one ____ I have worked for thee years．

New York, ________ I visited last year, is a nice old city．

The visiting professor gave us some advice, ____ of great help to our English learning.

Is this the problem ____the teacher explained last week ? Choose the wrong answer :

I’ll never forget such an attractive city ___ I spent many happy hours there with my classmates last summer holidays.

The opening ceremony of the Shanghai Expo brought me back to another exciting scene _____ people rushed about spreading the news of Beijing succeeding in bidding for the 2008 Olympic Games.

—We will take the conditions into careful consideration _______ you have attached to this contract.
—Thanks. Hope for further cooperation.