______ is well known to everyone, I should say, is that a man becomes learned by asking questions

.—She must have gone back to the valley.—No, she_________. The entrance to it was nowhere to be found.

下列各句与“人方为刀俎，我为鱼肉”句式相同的一句是(　 　)

Do you see the chair three legs

Studying ways usually play a role ________ getting good grades.