Bike— Part 1 Báo cáo

Gợi ý: 句子有语法与流利性问题。应注意动词时态和数（例如：'when I was seven years old'），去掉犹豫词并把回答组织成一句主题句加一到两句支持细节。可以加入连接词使叙述更连贯，如 'and', 'so', 'because'。同时控制长度不超过5句。

Ví dụ: Yes. My father bought me a bike when I was seven years old, and he taught me how to ride it. I remember feeling both excited and nervous at first, but after a few lessons I could ride around the neighborhood by myself.

Gợi ý: 回答有逻辑但句子结构和用词不准确。应使用现在时或更清晰的时态对比（例如 'used to be' 或 'in the past'），并补充具体原因或细节。使用连词（because, so, therefore）使观点更连贯，避免简单重复。

Ví dụ: Yes, I think so. Cars used to be very expensive, so many people preferred bicycles for daily travel. Even now, bicycles remain common in smaller cities because they are cheap and convenient for short trips.

× Yes, my father bought a bike when I seven years old and taught me how to ride a bike.

✓ Yes, my father bought a bike when I was seven years old and taught me how to ride a bike.

错误类型：过去时问题（ID 5）。说明：句子描述过去发生的动作，使用过去时“bought”和“taught”是正确的，但在“when I seven years old”中缺少系动词“was”。建议：在表示年龄时，须用系动词 be 的过去式（was/were）：when I was seven years old。完整句子为：My father bought a bike when I was seven years old and taught me how to ride it.（可以将重复的“bike”替换为“it”以避免赘述）。

× Yes, of course, the cars were so expensive in the past, so people always go outside with bicycle.

✓ Yes, of course, cars were so expensive in the past, so people always went out by bicycle.

错误类型：单复数问题（ID 1）并伴有时态和介词用法问题。说明： 1) “the cars” — 在泛指过去一般情况时，不需要定冠词“the”，直接用复数名词“cars”。 2) “go outside with bicycle” — 动词时态应与上下文一致，描述过去一般习惯用过去时“went”；短语搭配不当，应使用“go out”或“went out”，并用介词短语“by bicycle”表示交通工具。建议：将句子改为："Cars were so expensive in the past, so people always went out by bicycle." 或更自然的口语："Yes, of course. Cars were very expensive in the past, so people always went out by bicycle."