24
4
3
16
第1题：
A、needn’t have seen
B、must have seen
C、can't have seen
D、might have seen
第2题：
--I called you yesterday. A woman answered, but I didn't recognize her voice.
--Oh, it _________my aunt Jean.
A． must be
B． must have been
C． might be
D． can have been
第3题：
--I thought you wouldn't mind.
--Well, as a matter of fact, I don' t, but you_____________me first.
A． should ask
B． should have asked
C． must ask
D． must have asked
第4题：
You must speak slowly, so that you can make yourself ________.
A：understood
B：being understood
C：understanding
第5题：
A、should have done
B、must have done
C、must do
D、have to do
第6题：
A.Must you leave
B.Maybe you leave
D.You might left
D.Might you have left
第7题：
A:I haven't eaten all day.
B: You __ be very hungry.
A. should
B. have to
C. must
第8题：
A.mustn’t you
B.haven’t you
C.didn’t you
D.hadn’t you
第9题：
As a CCNA candidate, you will be expected to know the OSI model very well. Which of the following are associated with the application layer (layer 7) of the OSI model? (Choose two)
A. TCP
B. Telnet
C. FTP
D. Ping
E. IP
F. UDP
第10题：
A.had to have practiced
B.must practice
C.must have practiced
D.should practice