plz ryt answer denaaaa...

Answers
Answer:
In:-
1.) I shall finish the work in an hour.
2.) He lives in Austria.
On:-
1.) The book is on the table.
2.) He is playing on the ground.
Within:-
1.) I shall return within two hours.
2.) The noise seems to be coming from within the building.
Before:-
1.)She arrived before me.
2.)She became a doctor as her father had before her.
When:-
1.) When are you coming home?
2.) When do we have a holiday?
After:-
1.) She came after me.
2.) I can go out to play after I finish my homework?
For:-
1.) I am just going to bed for two hours or so.
2.) I am using the phone for my studies.
Since:-
1.) She has been absent since morning.
2.) We've played better since you joined the team.
Till:-
1.) I shall not be at peace till you promise me this.
2.)Then he added, "She'll probably take a nap till the sun goes down.
Until:-
1.) We stayed on the train until York.
2.)The kids stayed awake until midnight.
Explanation: