Part 1
考官
Did you have a bike when you were a child?
考生
I had a bike when I was a child, but I don't have it anymore.
考官
Do you think bikes are popular in your country?
考生
I think they're quite popular because it's really accessible and it's really cheap for transportation.
Did you have a bike when you were a child?
分数: 78.0建议: Your answer is clear and directly answers the question, but it is brief and could be improved by adding one or two specific supporting details (e.g., what kind of bike it was, how you used it, or why you no longer have it). Use a linking phrase to connect the main statement and the detail so the response is coherent and natural.
示例: Yes, I did — I had a red BMX when I was about eight, and I used it to ride to my friend’s house and practice tricks. However, I don’t have it anymore because I outgrew it and it was given away when we moved.
Do you think bikes are popular in your country?
分数: 72.0建议: The answer gives a reason, which is good, but repeat of 'really' weakens the vocabulary. Expand with a specific example or contrast (e.g., where bikes are commonly used, who uses them, or how they compare with other transport). Use a linking word to introduce the example or comparison for coherence.
示例: Yes, I think bikes are quite popular because they’re affordable and easy to use. For example, many students and delivery workers use bicycles in cities, especially during rush hour when traffic makes cars slow.
× I had a bike when I was a child, but I don't have it anymore.
✓ I had a bike when I was a child, but I don't have one anymore.
The pronoun 'it' refers to a specific singular noun already mentioned, which is acceptable, but in the context of replacing a previously mentioned countable item generally 'one' is more idiomatic and natural in English when referring back to an item of a type (a bike). Use 'one' to avoid ambiguity and sound more natural: 'I don't have one anymore.'
× I think they're quite popular because it's really accessible and it's really cheap for transportation.
✓ I think they're quite popular because they are really accessible and really cheap for transportation.
The original sentence incorrectly uses the dummy pronoun 'it' to refer back to 'bikes' (plural). Pronouns must agree in number with their antecedents: 'bikes' is plural, so use 'they' or 'they are'. Also remove the redundant 'it's' and repeated 'really' if desired; here correction keeps emphasis but ensures correct plural pronoun agreement: 'they are really accessible and really cheap for transportation.'