I knocked on the door several times but         answered, so I left.
#54689
A
somebody
B
nobody
C
anybody
D
everybody
推荐题目
______ are good friends. 
#53290
A
I and Tom
B
Tom and me
C
Me and Tom
D
Tom and I
I think ____ can help you except Lee. If he can’t, nobody can.
#53651
A
someone else
B
no one else
C
anyone else
D
everyone else