This is 3-D printer. And this is an artificial (人工的) ear. Can you believe that scientists printed this artificial ear by this 3-D printer?

I believe ____________, because he is ________honest man.

How often were you late for school last term. Lisa? —- _______. I got to school early every day.

Peter usually gets up early______the morning.[ ]

Is Lily good at singing? —Yes , she is．We often hear her_______ in the next room．