题目

—How do you usually go to school? —I           take a bus, but I            walking now. A. was used to; am used to          B. am used to; used to     C. used to; am used to              D. used to; use to 答案：C①BA＜1　　　②CA＞CB　　③A÷1=B．在这三个式子中，可以表明A＜B的是第______个式子．