Question

There is           milk in the cup. It's        hot.

1. A.
   a little, a bit
2. B.
   a bit, a little
3. C.
   a little bit, a bit of
4. D.
   a bit, a bit of

Answer 1

A
a little后接不可数名词，a bit of 后接不可数名词，a bit 后接形容词。a little 后也可接形容词，根据上述条件，故选A。