Bike— Part 1 Báo cáo

Gợi ý: 回答基本直接，但“not until I’m 19 years old”时态和表达不自然。应使用过去时，例如“didn’t learn to ride a bike until I was 19”。此外，可以补充一个具体原因，例如小时候没有自行车，或父母认为骑车不安全。

Ví dụ: No, I didn’t. I didn’t learn to ride a bike until I was 19 because my parents thought it was unsafe for me when I was young.

Gợi ý: 回答提到了共享单车，但“shared bag”应改为“shared bikes”或“bike-sharing services”，“is designed”也不能准确表达共享单车在本国很流行。应先明确回答“非常流行”，再用具体现象和原因支持观点，例如许多城市都有共享单车，而且它们便宜、方便、环保。

Ví dụ: Yes, definitely. Bikes are very popular in my country, especially shared bikes, which are widely available in major cities. They are convenient, affordable, and environmentally friendly, so many people use them for short trips.

× No, because I learned cycling not until I'm 19 years old.

✓ No, because I didn’t learn to ride a bike until I was 19 years old.

这个问题询问的是童年时期的经历，因此应使用过去时。原句中的“I’m”是一般现在时，应改为“I was”。此外，“didn’t learn ... until”比“learned ... not until”更自然；“learn to ride a bike”也是更常见、更准确的表达。

× Of course, yes, the famous shared bag is designed in my country.

✓ Of course, yes, the famous shared bag is designed in my country.

这句话没有明显属于指定语法问题类型列表的错误，因此不进行语法改动。“shared bag”虽然可能不是你想表达的词，但这属于词汇或内容问题，不在本次指定的语法纠错范围内。