1.【解析】选C。句意：为了保持与老师及同学的良好关系，你应该学着与他们和睦相处。keep up保持；bring up抚养；提出；add up加起来；take up占据，从事。
2.【解析】选C。All good things come to an end. 一切美好的事物皆有终结时; A still tongue makes a wise head. 寡言者智; A single flower does not make a spring. 一花独放不是春；All that glitters is not gold. 闪光的不一定是金子。
