题目

在流程图中， 表示输入输出功能。 答案：错误12．Safety（安全）is very important．We often  hear people  say"Safety first"．As a middle school student，we should learn to protect ourselves from every possible danger．Here are some things I do．I hope you can follow them．●On your way to school and home．You should obey the traffic rules．You should walk on the right side of the road．Don't ride your bike too fast．●When you are at school，you can't fight with each other，or you will be in great trouble．●Don't bring knife to school●Don't go out of school without your teacher's permission（允许）．●When you are at home，remember not to ask the door for strangers．●Don't give your home address，phone number or personal information to anybody  else that you don't  know  so well．If you are  careful  enough，then  you will be  safer．51．As a middle school  student，you  should  care shout yourB．A．look                     B．safety                      C．age                             D．phone  number 52．You should  notCwhen you gout home．A．walk  on the right  side  of the road                     B．obey  the traffic rules C．ride  your  bike too fast                                        D．bring knives 53．You should remember  that you can′tC．A．ride your bike on your  way to school  or home   B．give your  phone number  to others C．give your phone  number to others                       D．play  with your classmates when you are at school 54．You should  get the permission  formAif you want to go out of school．A．your  teacher           B．your  parents         C．your  classmates          D．your friends 55．The best title （题目） of the passage  isD．A．Don′t Do Bad Things At School                            B．Safety  Is ImporantC．Stay Away  Form Strangers                                    D．How To Keep Yourself Safe．