A.rewarding
B.rewarded
C.reward
D.rewardles
he classroom after the bell had rung.
A、crowded into
B、packed into
C、streamed into
D、crawled into
已经确定AB都不对,单选题。
A.kept
B.locked
C.prisoned
D.trapped
A.permit
B.permission
C.permissiveness
D.permissible