把下列单词排列成句子.

问题描述:

把下列单词排列成句子.
1.does,from,the,where,come,cloud(
2.going,you,to,what,do,are(
3.I,to,bike,go,sometimes,school,by( ).

where does the cloud come from?
what are you going to do?
sometames I go to school by bike