题目

Kate is a kind girl.         often helps us learn English.A. I                          B. You                         C. She                          D. We 答案： C  凯特是一个女孩，与之对应的主格代词是she。（2013•黄陂区模拟）函数y=2x-8中，自变量x的取值范围是（　　）A．x≥-4B．x≤-4C．x≥4D．x≤4