1．—Mr Green, can you spare me a few minutes? I still have some questions about your assignment．
— .
A．It s a pleasure B．Not at all
C．Help yourself D．Sure, go ahead
2．We live in _______ rapidly changing world and must learn to adapt if we are to succeed in_______ future．
A．a; 不填 B．the; the
C．the; 不填 D．a; the
3．The landlord wants to ______ the rent by $30 a month, which I think is unacceptable．
A．make up B．take up
C．cut up D．put up
