Supermarket around Tiananmen/Wangfujing.

Hi, you can easily find a supermarket around the two places.
Around Tiananmen, there are Wumei Supermarket, Yasheng Supermarket and Shuangfeng Sisters Supermarket.

As for the supermarket near Wangfujing, I don't know your specific location, so I can just give you a general suggestion. I know near Wangfujing MTR Station, there are Vanguard and Dongfang Xintiandi Suepermarket.

I was shopping on Wanfujing street today and found two Western style small supermarkets . One was at the 'Beijing APN" store , in the basement . This is right beside the bronze sculpture of a rickshaw . Also across the street , in the marked 'Van Cleef and Arpel " there is another one on the basement level .
Both quite pricey but if you REALLY need Scottish shortbread or German lager or New Zealand cheese slices , then they have them .