单项选择题
A．friend B．friend's C．friends D．friends'
21（）A．saidB．withC．he sayingD．at
单项选择题21（）
A．said B．with C．he saying D．at
22（）A．has lostB．was lostC．has missedD．is missed
单项选择题22（）
A．has lost B．was lost C．has missed D．is missed
The teacher came into the room, with his hands ______ b...
单项选择题The teacher came into the room, with his hands ______ behind his back.
