选出所给句子的答句，将其字母代号填在括号内。

①Is this your jacket?____                     A. I'm ill.

②What's the time?____                       B. All right.

③Shall we copy it now?____                   C. No, it isn't.

④What's the matter?____                      D. Four thirty

⑤My pencil is too short.____            E. You can have this long one.

已知（2x²+x﹣y）ⁿ的展开式中各项系数的和为32，则展开式中x⁵y²的系数为____．（用数字作答）

一共有多少只蜜蜂？