1．—Is everyone here?
—Not yet...Look，there________the rest of our guests!
A．come B．comes C．is coming D．are coming
2．John opened the door.There________he had never seen before.
A．a girl did stand B．a girl stood C．did a girl stand D．stood a girl
3．Not until he left his home________to know how important the family was for him.
A．did he begin B．had he began C．he began D．he had began
4．We laugh at jokes，but seldom________about how they work.
A．we think B．think we C．we do think D．do we think
5．At the meeting place of the Yangtze River and the Jialing River________，one of the ten largest cities in China.
A．lies Chongqing B．Chongqing lies
C．does lie Chongqing D．does Chongqing lie
