21．(2012·鹤岗高一检测)—What about the rent?
— ____________. You can pay weekly or monthly.
A．It’s up to you B．That’s all right
C．No problem D．Not at all
22．The teacher is very strict_______us in class but she is very kind______us after class.
A．with; to B．to; with
C．to; to D．with; with
