L43

1.fly over 飞越过 2. flight 名词飞 3.lie 处于 lay below 4.run into trouble 遇到麻烦 5. at one point 在某一地方 6.get over the mountains 越过山头 7.clear 越过 8 endless white plains 茫茫无尽的白色原野

L44

1.run after 追赶 2.rush up 冲向 3. In the struggle，the strap broke and with the bag in their possession. (In the struggle在争抢中, in their possession 为某人所有，原本不属于对方） 4.run through 跑进 5. ran straight 直冲 6.catch up with 赶上，追上  7. going through the contents of the bag(going through 翻看，contents of 内有物品）8.get such a fright 吓了一跳 

L45

1. a large sum of money 2.three months passed 3.wrap up 打包 4.in time 最后 、最终 5. two months later 又过了两个月