根据下面所提供的对话情景，在每个空白处填入一个适当的句子，使其意思连贯、完整。（请注意大、小写和标点符号）

Bob and Jane are classmates. They are talking at the school gate.

B= Bob           J= Jane

B：Hi, Jane. You look unhappy today. 1．             

J：I had a little accident yesterday.

B：Oh? 2．             

J：I came to school yesterday morning. I rode too fast. When the traffic lights were red, I couldn’t stop my bike at once. I hit the car in front of me.

B：3．              . Were you hurt badly?

J：No, I was OK. But my bike was broken.

B：4．              . I can mend it for you.

J：Really?

B：Of course. It’s easy.

J：Thank you.

B：5．                .