题目

— Please tell us _________.    — Write down your names on the paper.      A. What shall we do next         B. What we shall do next      C. What did we do next          D. What we did next 答案：B3个棱长是1米的正方体排成一列组成一个长方体，一个正方体的表面积是长方体表面积的3737，长方体体积是一个正方体体积的3倍3倍．