Из того, что Вы предоставили, у меня получилось только так)
1)A: Will you stay with us for the weekend?
B: Certainly!
2) A: Oh, I'm sorry. Do you think your mum will be soon at home?
B: No, she'll come home only in the evening.
3)A: Let's find out something. Did Christopher Columbus discover America in 1492 or in 1592?
B: In 1492, I think, but I am not sure.
4)A: Victor speaks English and French, doesn't he?
B: Yes, he does.