—May I smoke here ?—If you ____, choose a seat in the smoking section.
#90273
A
should
B
could
C
may
D
must
推荐题目
---Imagination important in science, and it helps us dream up our future.---You are definitely right. If only something allow me to see insects and spiders magnified without getting close to them.
#89341
A
was; would
B
is; will
C
will be; can
D
is ;could
The light is still on. They ___ to turn it off when they left the room.
#87772
A
must forget
B
could have forgotten
C
may forget
D
must have forgotten
The maths teacher demanded that all the students _____ the examination paper within one and a half hours.
#86904
A
finish
B
finished
C
would finish
D
could finish
I insist that he _______ medicine instead of law.
#87926
A
has studied
B
studies
C
should study
D
studied
How lucky he was! He ____ involved in the murder.
#86955
A
must have been
B
can have been
C
could have been
D
would have been