-–Mary knows the city quite well.--She______ well have been there before.
#63125
A
need
B
could
C
should
D
may
推荐题目
Some people ________ not have plans yet for New Year’s Eve, but others know exactly what they will be doing.
#62675
A
can
B
must
C
need
D
may
Mr. Baker, a number of students want to see you. _______ they wait here or outside?
#63137
A
Should
B
Will
C
Could
D
Shall
—Bill, can I use your dictionary? I left mine at home.—Of course you________. Glad to help you.
#75577
A
need
B
may
C
must
D
can
—Bad news? —If you ______ know, Li Na got defeated again in the first round!
#63506
A
can
B
will
C
shall
D
must
We all know that we ________ our carbon footprint, but I suspect that many people wouldn't be prepared to go as far as Joan Pick, a retired scientist living in south London.
#62336
A
must have reduced
B
should have reduced
C
may have reduced
D
could have reduced