补全对话。
根据对话情景，在每个空白处填上一个恰当的句子，使对话完整、连贯。
A: 1.________________________
B:I think I'm going to fail the math test today，Dad.
A: 2.________________________
B:Well，because I missed the bus and I was late for the test.
A:So?
B:We're not allowed to get to class late.
A:You weren't allowed to take the test?
B: 3.________________________But I know I could pass the test.
A:Well, every school has rules，you know.
B:I know. 4.________________________I should be allowed to take the test later.
A: 5.________________________You could talk to your teacher tomorrow.
B:Yeah. Maybe she'll understand.