In the 1930s, the two countries were at ______ war, and his father was fighting at _____ front.
A.the; 不填 | B.不填; the | C.the; the | D.不填;不填 |
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In the 1930s, the two countries were at ______ war, and his father was fighting at _____ front.
A.the; 不填 | B.不填; the | C.the; the | D.不填;不填 |