Question

the idea is wrong .he will become rich


combine opposite clause​

Answer 1

the idea that he will become rich is wrong

Answer 2

The original sentences are:

The idea is wrong .he will become rich.

After combining them by using opposite clause, the new sentence will be as follows:

Although the idea is wrong, he will become rich.

An opposite clause starts with words like even though or although and denotes a contrasting idea or thought as compared to the central part of the sentence.