With food and gunpowder       short, the soldiers are suffering from hunger and danger of being attacked by the enemies at any time.

A．to run

B．to be run

C．run

D．running

军歌不得在下列时机、场合奏唱（）

A、婚、丧、悼活动

B、舞会、一般联谊会等娱乐活动

C、商业活动

D、其他不宜奏唱军歌的时机、场合