Why do children watch cartoons? (in order to)
Children watch cartoons in order to ....
Why is it essential to speak during English lessons? (due to the fact that)
It is essential to speak during English lessons due to the fact that ....
Why do people work out? (so as to)
People work out so as....
Why do we play video/PC games? (so that)
We play video/PC games so (that)...
What could be the reasons for not going for a walk? (because of)
We do not go for a walk because of....
Why is education important? (as)
Education is important, as .......
Why are people eager to learn foreign languages? (since)
People are eager to learn foreign languages, siince...
Why do people whisper? (to)
People whisper (not) to....
Why is it important for people to like their job? (since)
It is important for people to like their job, since .....
Why could be your holiday canceled? (owing to)
My holiday could be cancelled owing to....