In this exercise, we see "Peut-etre qu'ils". Why do we need "que"? Why not just "Peut-etre ils"?
Freeform Writing Exercise B1
Peut-être que is a conjunction and is followed by a clause. It can be used at the beginning of a sentence. Peut-être on its own is an adverb and has to be linked to a verb, or placed at the end of a sentence.
Peut-être qu'ils connaîtront...
Ils connaîtront peut-être ....
Ils connaîtront ... , peut-être.
For a more comprehensive (and perhaps more precise) answer, see:
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