问题补充：
There are many things that you should be careful with when you are alone at home. Read the following solutions to protect yourself.
Keep the door locked when you are alone at home. Many people think it’s the best way to protect themselves.
Keep a list of phone numbers to call for help-such as 110, the police station or a neighbor’s number.
Be careful with the electrical appliances（电器）. If don’t know how to use them, ask your parents. Make a safety check before going to sleep.
Look through the keyhole when you hear the doorbell. If there are strangers, ask “Who’s that?” with the door locked and say “Come back later.” Don’t tell them that your parents are away. Say “Mum’s having a shower.” or “Dad’s having a sleep.”
Protect Yourself When Home Alone
Situations
Solutions
You are alone at home
Keep the door 71
To 72
Keep a list of phone numbers
Before 73
Make a safety check of the electrical appliances
Talk to the strangers
Ask “ 74 ?” with the door locked.
Don’t say your parents 75
locked
答案：
(答案→)locked
解析：
【小题1】根据Keep the door locked when you are alone at home.可知填：locked
【小题1】根据Keep a list of phone numbers to call for help-such as 110, the police station or a neighbor’s number.描述，可知填：call for help
【小题1】根据Be careful with the electrical appliances（电器）. If don’t know how to use them, ask your parents. Make a safety check before going to sleep.可知填：going to sleep
【小题1】根据If there are strangers, ask “Who’s that?” with the door locked and say “Come back later.”可知填：Who’s that
【小题1】根据Don’t tell them that your parents are away.可知答：are away
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