精英家教網 > 初中英語 > 題目詳情
Waste paper shouldn’t _____ everywhere. It’s our duty to keep our classroom clean.
A. be thrown               B. throw                      C. is thrown
A
本題的含義是不應該到此亂扔廢紙，should為情態動詞后加動詞原形，本題前半句表示被動的意思，結構為be+過去分詞，故本題選A。
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