Question 14:

a. Lan: OK, Mum. I'll be home before 10 p.m. then.

b. Lan: It's Mai's birthday, Mum. Is it OK if I stay the night at her house after the party?

c. Lan: Mum can I go to my friend's birthday party this Saturday evening?

d. Lan's mother: Certainly. Whose birthday is it?

e. Lan's mother: Oh, I’m afraid not. You must come back home before 10 p.m. We're going to visit your grandparents early on Sunday morning.

(Adapted from Global Success)