Can I back to China again from visiting HK/Macao with single entry visa?

I am a Pakistani Citizen and at present in China on F visa 180 days with single entry. I would like to go to Hongkong and Macau on different weekends. I there any way to go to these destinations and come back to mainland of China with my single entry visa orelse kindly guide me in this regard specially with regard to HongKong. Thanks in anticipation