Which sentence is wrong?

A．Time and tide waits for no man.

B．Many a student are busy with their lessons.

C．As is known to all, Rocky mountains stand in North America.

D．The singer and dancer is to attend our party.

（）第一次提出了“建设有中国特色社会主义”的概念。

A.邓 * * 在十一届三中全会上

B.邓 * * 在十一届六中全会上

C.邓 * * 在十二大上

D.邓 * * 在十三大上