Question

are/you/where/going?
did/who/see/you/in/the street?
why/they/did/late/come back?
do/she/what/does/here?
will/he/fly/to London/when?

Answer 1

where are you going?
who did you see in the streets?
why did they come back late?
what does she want to do here?
when will he fly to London?