Please listen to the teacher as _______ as you can in class.

A．careful

B．carefully

C．careless

D．care

Please listen to the teacher carefully. Don't ______ the window.

A．look out

B．look into

C．look out at

D．look out of

Please listen to the teacher carefully, don’t _________ of the window.

A．look out

B．look to

C．look up

D．look into