There are few experiences quite pleasant as getting a good idea．You've had a problem, you've thought about it till you were tired; you've forgotten it and perhaps slept on it, and then flash! When you weren't thinking about it, suddenly the answer has come to you, as a present from the gods．You're pleased with it, and feel good．It may not be right, but at least you can try it out．Of course all ideas don't come like that, but the interesting thing is that so many do, particularly the most important one．They come into the mind, glowing（燃烧）with the heat of creation．
The most important ideas ____．

A．come when you are tired

B．are always right

C．are pleasing but not good

D．come as if they send out brightness and warmth

The ideas coming into the mind are worth ____．

A．thinking about

B．dreaming

C．trying out

D．sleeping on

What does “so many do” mean in the third paragraph?

A．Interesting ideas always turn out to be true．

B．Many ideas often come suddenly．

C．Many interesting things happen suddenly．

D．Many important ideas suddenly come from the gods．