19．On the wall at the entrance is a sign"No Photos"，meaning that we _____take any photos in the museum．（　�。�
A．needn'tB．wouldn'tC．don't have toD．mustn't

分析 在入口處的墻上有一個"禁止拍照"的標志--這意味著我們禁止在博物館拍攝任何照片．

解答 答案：D
解析：A：沒必要；B：不愿意；C：沒必要；D：禁止；絕不可以．根據(jù)前面的"禁止拍照的標志"可知我們"禁止"在博物館拍照，故結(jié)合所給選項分析可知本題答案為D選項；其余選項均不符合題意．

點評 本題考查情態(tài)動詞，做此類題目時一定要先分析各個選項的含義及其用法再結(jié)合句意選出正確答案．

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