The more....the better

[Banglardon]

I can't decide how to make up a sentence with the more......the better. Could you please tell me which one is correct?

1- The more difficult the topic that you speak on is the better it is for your English.

2- The more difficult the topic is that you speak on, the better it is for your English.

 

[probus]

They are both acceptable although the first needs a comma after "is". However, fewer words would be better. Try this:

The more difficult the topic of your speech, the more your English will benefit.

 

[Tdol]

Is it true, though?

 

[jutfrank]

I'll also point out that the verb (is) is not necessary in the first clause. In fact, its omission brings a helpful economy to the phrase as a whole.

The more difficult the topic that you speak on, the better it is for your English.