I am a Muslim studying in China and there is only one mosque in my city. They only open it for Jumu'ah prayer but close it thereafter. In this situation, are we allowed to pray at home?
Yes, we are allowed to pray at home especially when the Mosque is closed. Friday prayer has its conditions where ever it was established e.g. minimum number of participant is five, and the Imam of Jum'ah must be 'Adil (pious believer who does not commit sins) and other conditions.
Wassalam.