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  3. More than three-quarters of the children we interviewed said they’re sometimes afraid to be home alone. If you decide your child

More than three-quarters of the children we interviewed said they’re sometimes afraid to be home alone. If you decide your child

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问题     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 after school, you should make【C2】______your house is safe and teach your child to【C3】______various situations.
    【C4】______a game of your instructions. Have your child answer questions beginning with "What would you do if and【C5】______with phrases like "you lost your key"【C6】______"someone you don’t know comes【C7】______the door."
    The best home security is【C8】______. Every home should have smoke detectors, but consider also installing a burglar-alarm system. Leaving aradio【C9】______during the day makes a home sound【C10】______. Besides, as one child said, "It’s horrifying walking into a quiet house." Don’t leave an extra key in【C11】______hiding places, such as under the doormat. Leave it with a neighbor 【C12】______.
    【C13】______your child is home alone, the phone is a vital【C14】______. A parent or designated (指定的) adult should always be【C15】______by phone. Children should know where to find【C16】______numbers, and how to answer the phone and take a message without letting a(n) 【C17】______caller find out no one else is home. You might purchase a telephone-answering machine. Your child would then be able to pick up the receiver only when he heard a familiar 【C18】______.
    If you help your child understand the precautions you’ve【C19】______. he will feel more 【C20】______about staying home.
【C13】
选项 A、Until
B、If
C、When
D、Since
答案C
解析 结构衔接题。when引导的从句表示一段时间，在这指“孩子独自在家时”，故答案为[C]When。if引导的是条件状语从句，表示“假如”，主句用将来时，从句用一般现在时。前面已经明确提及本文说的是让孩子独自在家，自然也就不用“假如”，故排除[B]If。
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大学英语四级

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