The Japanese set up a puppet state called Manchukuo in the Chinese province of ____1____ in 1931, and again invaded China in ____2____.
A1: Hunan 2: 1936
B1. Jiangxi 2: 1937
C1: North Korea 2: 1939
D1: Manchuria 2: 1937
A1: Hunan 2: 1936
B1. Jiangxi 2: 1937
C1: North Korea 2: 1939
D1: Manchuria 2: 1937