题目内容
Teenagers should learn to protect (保护) ______from all kinds of dangers.
| A．them | B．they | C．their | D．themselves |
D
解析试题分析：句意：青少年应该学会保护自己避免各种危险。A他们，宾格，用在动词或介词后作宾语，B他们，主格，作主语，C他们的，形容词性物主代词，修饰名词，D他们自己，反身代词，只能做宾语和同位语。指动作作用在自己身上。结合句意及结构故选D。
考点：考查冠词的用法。
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