1、Never before _______ see such a terrible car accident on the road!
A：I have
B：have I
C：I did
D：did I
答案：D
2、Many people watched the boys ______the mountain at that time.
A：climb
B：climbing
C：to climb
D：climbed
答案：B
3、 Tom, what did you do with my documents? I have never seen such a _____ and disorder!
A：mass
B：mess
C：guess
D：bus
答案：B
4、On ________ side of the street there are some trees.
A：both
B：either
C：every
D：all
答案：B
5、On average, a successful lawyer has to talk to several _______ a day.
A：customers
B：supporters
C：guests
D：clients
答案：D