若一个三角形的三边长分别是m+2，10，2m﹣1，则m的取值范围为（    ）．

Great changes ___ in my hometown and a lot of factories _______.

A．have been taken place , are being set up

B．have taken place , have been set up

C．are taken place , had been set up

D．had taken place , will be set up