second correction
Doesn't she know how long to study that language?
Do you know how to study that language?
Students seems to think about that.
What does he think about that?
She will be lucky to finish as soon as she can
She isn't lucky because she won't be finished by next year
You'll be glad to be working around the clock, starting tomorrow
Does it take much time to do this?
Does it take a long time to do this?
Don't you know anything about the last meeting?
what does everyone seem to think about the work?
Can we start today?
Will I be lucky if it is finished tomorrow?