关于 rather than后面所接动词的形式

关于 rather than后面所接动词的形式
我们通常把would rather后的动词理解成省略to的不定式,即动词原形.
请大家探讨一下下面这几题：
1.I like drawing rather than ______ in my spare time.
A.read B.reading C.to read D.reads
2.I prefer ______ rather than _______ .
A.swimming,running
B.to swim,run
C.to swim,running
D.swim,run
请说明原因,
rather than不是可以接-ing形式吗？
prefer to do
prefer doing都可以呀