1. John always does his homework ______________ in order not to make any mistakes.

2. It’s ______________ to find any excuse when you do something wrong.

3. The factory makes a new type of cars which produces less air ______________.

4. All the victims were saved and taken to ______________.

5. We all know Mother’s Day is on the ______________ Sunday of May.            

消防人员在作战中会受（）等灾害现场环境的影响，造成心理不稳定。

A、外界干扰

B、毒气

C、高温

D、浓烟

E、噪声