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單項選擇題

The river （） to the east. It is the second longest river in the country.

A.runs
B.is running
C.run
D.ran

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單項選擇題

"The ceremony has already started." "Look! The flag（）now."

A.is being raised
B.is risen
C.is being rose
D.is raising

單項選擇題

I feel it's an honor（）to attend the opening ceremony of the new bank.

A.to invite
B.of being invited
C.to be invited
D.having invited

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