Question

Our playground is not so tidy and beautiful as before. Students must _____ dirty things on it.
A. be stopped to throw
B. be stopped from throwing
C. stop to throw

Answer 1

B

試題分析：句意：我們的操場不如以前干凈和美麗了，學(xué)生們必須禁止向上面扔臟東西。“禁止某人做某事”是“stop sb. from doing sth.”,根據(jù)題干分析應(yīng)是學(xué)生被禁止，所以用被動語態(tài)，故選B。