I am ex-navy officer(前海军官员) and now working as a primary school volunteer teacher in Chiang Rai. Our school is located in the most northern part of Thailand.
I used to teach according to my plan and in addition I had to take care of students` safety. Early this month(November) we all needed to put on our light jacket to prevent cool weather. One morning during the first break I saw a group of primary level boys were playing police and thief game. They were a playing with a plastic pistol(手枪), which can shoot with plastic balls. It seemed to me very dangerous for their eyes. Immediately I called them and ask to hand over their toy gun. I placed it between my back bone and waist belt. No one can see it because it is under my light jacket.
In the afternoon I needed to pay my house electric bill and I had to withdraw some money from Kung Thai Bank. I walked into the bank and sat in waiting chair with other customers. I relaxed my back to the seat and then I realized that toy gun in my body. Oh, God! I made a big mistake because it is gun forbidden area. I looked around and my eyes met with the guard’s eyes.
I became sweating and couldn`t move from my seat until my turn announced from public addresser. As soon as I received my money and I shouted without voice “ I will never make the same mistake again”. The following period before I taught my lesson to class I told them what happened to me today. All my students enjoyed laughing without end.
Why did the author take away their toy gun?

A．Because the children are too young to play with toy gun.

B．Because the teacher wanted to play himself.

C．Because the teacher must take care of the students` safety.

D．It is against the school rules to play with toy guns.

What does the underlined word mean? 

A．move away	B．pull back
C．draw back	D．take out

Why did the writer say he made a big mistake when in bank? 

A．Because he forgot the password of his bank account.

B．Because he took the gun into the gun forbidden area.

C．Because his eyes met with the guard’s eyes.

D．Because he forgot to return the toy gun to the children

From the end of the story, we can infer that____________. 

A．The teacher is getting on well with his students.

B．The students hate their teacher because he took away their toy gun.

C．The students laugh at their teacher because he is very silly.

D．The teacher is careless because he often makes mistakes.