Joe and Peter are talking quietly in the classroom.
A：What are you doing？
B： （1）

I'm doing my homework

I'm doing my homework

.I must finish it before class is over.
A：Well，I'm so hungry that I can eat a cow in one go.
B：Me，too.
A：（2）

What time is it

What time is it

？
B：A quarter to tjye.ailve.We have fifteen minutes before lunch.
A： （3）

Do you have something to eat

Do you have something to eat

？
B：Yes，I have some bread in my bag.
A：Can I have some？
B：Sure，but（4）

we can't eat in class

we can't eat in class

.
A：But why not now？
B：Because we're in class. （5）

We must keep the classroom clean

We must keep the classroom clean

.
A：I see.We must follow the rule.
B：Shh，don't talk to me.Mr.Wang is coming.