Question

As the sun began to set the sky filled with heavy clouds.

where does a comma belong?

A.after son(i pick A.)
B.after began
C.after set
D.after filled

Answer 1

I think C that's wat I would of done :P

Answer 2

@Opcode

Answer 3

I agree with @SDZX .
C seems the best choice.

Say it out loud.
As the sun began to set <pause> the sky filled with heavy clouds.

Answer 4

C is correct.