根据对话内容,在横线上填上恰当的句子,使对话意思完整.

根据对话内容,在横线上填上恰当的句子,使对话意思完整.
A:Mum,I shall not have lunch at home today.
B:(1)________________________________________________.
A:I want to go to the pet shop at noon with my classmates.Most of the students in our school have their
own pets.Mum,as you know,(2）________________________________.
B:What kind of pet do you want to have?
A:A dog or a cat.I haven't decided yet.
B:(3)___________________________.It would make much noise.A dog has to go out every day,and there isn't a dog near
our building.Besides,the dog food is expensive.
A:(4)____________________________.Cats are cheaper than dogs.
(5)_________________________________.
B:Yes,cats are easier to keep.
3月28日22时之前.