1914年马恩河战役结束后，德军总参谋长认为，德国“已经输掉了战争”，这是因为   

A．德国军队的主力遭到重创

B．协约国军队由防御转入进攻

C．德国军队的战线被突破

D．德国难以承受长期战争的消耗

根据所给汉语提示完成句子

1.What were you doing when you _________ _________ (听说) the accident?

2. My plane to Shanghai will _________  _________  (起飞) in an hour.

3. _________ _________(并非所有的) girls are afraid of snakes.

4. Our city has been famous _________  _________ (在历史上).

5. The old man _________ _________ (被杀)in a terrible accident.