描述过去与现在的对比 — 英语情景题

Read and complete.（补全对话，每空一词） Sam: Tom, look at my old photo. I was six then. Tom: Wow! You (1)________ small then, but now you (2)________ tall. Sam: Yes. My hair (3)________ short then, too. Tom: Now your hair (4)________ long. And you couldn't ride a bike then. Sam: But now I (5)________ ride a bike to school every day. Tom: Great! Things change!