设A={x|-2≤x≤5}，B={x|m-1≤x≤2m+1}．

（1）当x∈N^*时，求A的子集的个数；

（2）当x∈R且A∩B=∅时，求m的取值范围．

After walking a whole day, I was almost________, not feeling bad, though.

A．out of shape

B．out of breath

C．out of control

D．out of order