有很多的问题,during the ire drill和in the fire drill一样吗?

题目

有很多的问题,during the ire drill和in the fire drill一样吗?
是how did the early men make a fire还是how did the early men to make a fire?
是what may happen if we don't careful with fire还是what may happen if we aren't careful with fire?switch off和close to意思一样吗,不同在哪里?the thieves found it hard to steal the bag是啥意思?我要以为我笨,我只是掉进了我给自己设的怪圈里了.希望高人指教,要正确答案,最好有讲解,（因为是新人,没钱.）

答案

during the fire drill 表示在这个射击训练的期间,表示这个情况的一段时间
in the fire drill表示在这个射击训练的时间内.
是how did the early men make a fire,这样的特殊疑问句要是分不清,就把他们还原成陈述句,此句经还原应为The early men made a fire by ……而不是The early men to make a fire by ……
（因为此句语法不通）
是what may happen if we aren't careful with fire,因为有词组be careful with
switch off 1.关闭 2.（使）没兴趣 3.是停止谈话
close to 1.离……近 2.与……关系密切
小偷们发现偷包是很困难的