Bike— Part 1 채점 보고서

제안: 回答过去经历时要使用过去时。这里应直接说明小时候有没有自行车，例如用“Yes, I did”或“No, I didn’t”，再补充一个具体细节，让回答完整自然。

예시: Yes, I did. I had a small blue bike when I was about eight, and I used to ride it around my neighborhood.

제안: 先直接回答自行车在你所在国家是否受欢迎。注意区分“自行车很受欢迎”和“骑自行车是一种受欢迎的锻炼方式”；可以补充具体原因或使用场景，并用合适的代词，避免用“it”指代不清。

예시: Yes, I think cycling is quite popular in my country. Many people ride bikes to work or school because it’s an affordable and convenient way to get around. It’s also a popular form of exercise.

× Yes, I am.

✓ Yes, I did.

问题问的是过去的经历（“when you were a child”），并使用一般过去时助动词 did。回答时应使用 did 呼应问句，不能用现在时 am。

× Yes, I think it is a very popular exercise.

✓ Yes, I think they are very popular.

这里的 it 指代复数名词 bikes，代词应改为 they。相应地，be 动词也应使用 are。回答时可以说“我认为它们很受欢迎”，避免使用与 bikes 数量不一致的代词。