—Who is speaking there? —It        be Uncle Li. He has gone to Shanghai.
#75268
A
must
B
can’t
C
might
D
should
推荐题目
 We ________ here on time but we were caught in a traffic jam.
#62326
A
must have arrived
B
could have arrived
C
need have arrived
D
should have arrived
You __________ buy a gift, but you can if you want to.
#63027
A
must
B
mustn’t
C
have to
D
don’t have to
The school rules state that no child _____ out of the school, unless accompanied by an adult. 
#63402
A
shall allow
B
shall be allowed
C
will allow
D
will be allowed