Answer:
China is an autocratic government today.
Japan is a democratic goverenment today.
Mongolia is a democratic govenment today.
Taiwan is a democratic goverenment today.
Step-by-step explanation:
China functions as a socialist republic governed by a single party, communist, led by a general secretary.
Japan is a monarchy by the constitution, with the emperor in its entirety, or the emperor having ceremonial duties only.
Mongolia is Republic with a multiparty system. The President and the Government have the highest power.
Taiwan's political status is uncertain because China does not recognize it and it claims to be its territory.