More than three-quarters of the children we interviewed said they’re sometimes afraid to be home alone.If you decide your child is【C1】______enough to be home alone before or【C2】______school，you should make sure your house is【C3】______and teach your child to【C4】______various situations.
Make a game of your instructions.Have your child answer questions beginning with ’What would you do if’and ending with phrases like ’you lost your key’【C5】______’someone you don’t know comes【C6】______the door.’
The best home security is【C7】______.Every home should have smoke detectors，but consider also installing a burglar-alarm system.Leaving a radio【C8】______during the day makes a home sound【C9】______.Besides，as one child said，’It’s horrifying walking into a quiet house.’Don’t leave an extra key in obvious hiding places，such as under the doormat.【C10】______it with a neighbor instead.
【C11】______your child is home alone，the phone is a vital【C12】______.A parent or designated（指定的）adult should always be available by【C13】______.Children should know where to find【C14】______numbers，and how to【C15】______the phone and take a message without letting an unknown caller【C16】______no one else is home.You might【C17】______a telephone-answering machine.Your child【C18】______then be able to pick up the receiver only when he heard a【C19】______voice.If you help your child understand the precautions you’ve taken，he will feel more【C20】______about staying home.

【C1】（）