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The Yellow River is the second        river in China.?

The Yellow River is the second _________ river in China．

　　A.longer　　B.longest

　　C．the most long　　D．more longer

The Yellow River is the second ________ river in China.

[　　]

_________ Yellow River is the second __________ river in China.

　　A. The; longest　　B. ／; longest　　C. ／; longer　　D. A; longer

[　　]

The Yellow River is the second ______ river in China.

[    ]

　　A. longest    B. longer    C. long    　　D. /

The Yellow River is the second          in China.

A. long     B. longer      C. longest    D. longer and longer