10．-You are required by law________seat belts．
-Thanks for your reminding．I'll do it right away．（　　）
A．wearingB．being wornC．to wearD．to be worn

分析 --法律要求系好安全帶．
--謝謝你的提醒，我馬上就系好安全帶．

解答 答案：C
解析：require sb to do sth 意為"要求某人做某事"，而根據(jù)句意及橫線前面的be動詞are可知本題使用的是其被動語態(tài)結(jié)構(gòu)be required to do sth"被要求做某事"；故結(jié)合所給選項分析可知，本題答案為C選項．

點評 本題考查動詞不定式，做此類題目時要仔細分析句子結(jié)構(gòu)，確定所缺成分及該由什么來充當此成分；再結(jié)合選項選出正確答案．

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