将二次函数y=x²﹣4x+5化为y=（x﹣h）²+k的形式，那么h+k=____ 

（Ⅰ）方程|x|=2的解是____ 　

（Ⅱ）用计算器计算：$\sqrt{10}$﹣$\sqrt{7}$=____ （保留三位有效数字）

⑴Do you want some rice?____             A. Thanks.

⑵What do you want to drink?____       B. Yes, I do.

⑶Can I help you?  ____                         C. I want some bread.

⑷Here you are.____                               D. Water, please.

⑸Do you want coffee or tea?____         E. I want some tea, please.