After early men discovered fire ,they started eating ( ) food .A cooks B cooked C cooking D to cook 为什么?

After early men discovered fire ,they started eating ( ) food .A cooks B cooked C cooking D to cook 为什么? 新概念英语填空用it或there填空1.-were some men digging up the road outside my house2.-is unusual for him to be late3.-has been very cold this year4.-has been no news of him5.I am sure-will be fine tomorrow6.After dinner--will be a long disc Why did early men use fire?（保持句意不变） __ did early men use fire __? fabs(disc) compact disc compact disc checking disc adhere disc 摄像机disc MY DISC DISC是什么 什么是disc? DISC是什么 center disc u-disc we must look after the old men 同义句 men get up early in the morning to work in the field. 可不可以改写成men get up early to work in the field in the morning. men