A：越来越友好的人机界面
B：越来越个性化的功能设计
C：越来越高的性能价格比
D：越来越复杂的操作步骤
—Were you at home yesterday?
—No, I________. I was ________ school.
— Oh, ______I'm already going out, I'm afraid.
一Where are they from?
一Most of them from China. A small number of them from England.
