【题目】The Red Army soldiers had to fight ________ all kinds of difficulties in their fight ________ the people's freedom.
A.for; for
B.with; with
C.against; against
D.against; for

【答案】D
【解析】考查动词短语辨析。fight for“为…而战”；fight with“用...与…交战，和…斗争”；fight against“与…作斗争，反对”。 根据句意：红军在他们为人类的自由而战的时候不得不与各种各样的困难做斗争。故选D。