题目

He played a trick ____ Jessy and he had to apologize _____ treating her ____ a nice dinner. A. on; for; to       B. in; by; to     C. on; by; to     D. on; by; with   答案：C  考查介词用法。Play a trick on sb“愚弄某人”。  [2013·广东高考]设m，n是两条不同的直线，α，β是两个不同的平面．下列命题中正确的是(　　)A．若α⊥β，m?α，n?β，则m⊥nB．若α∥β，m?α，n?β，则m∥nC．若m⊥n，m?α，n?β，则α⊥βD．若m⊥α，m∥n，n∥β，则α⊥β