Part 1
Examiner
Did you have a bike when you were a child?
Candidate
Yes, of course I have a back when I was a child.
Examiner
Do you think bikes are popular in your country?
Candidate
Hmm, you can see many people ride the bike on the road and the shield back is very popular in my city. You can see them everywhere.
Did you have a bike when you were a child?
Score: 42.0Suggestion: Pronunciation and grammar need fixing; give a direct, natural response then a brief supporting detail. Use correct past tense and the word 'bike' rather than 'back'. Keep it concise (1–3 sentences). For coherence, start with a clear topic sentence and add a short detail using a linking word (e.g., 'because' or 'so').
Example: Yes, I had a bike when I was a child. Because my parents encouraged outdoor play, I rode it to school and around the neighborhood almost every day.
Do you think bikes are popular in your country?
Score: 48.0Suggestion: Improve grammar, word choice and clarity. Start with a direct opinion (e.g., 'Yes, they are very popular'), then give specific supporting details using linking words (e.g., 'for example', 'because'). Replace unclear phrase 'shield back' with the correct term (maybe 'shared bikes' or 'electric bikes') and be specific about where and who uses them.
Example: Yes, bikes are very popular in my country. For example, shared bikes and electric scooters are common in my city because they are cheap and convenient for short trips, so you can see them parked on almost every street.
× Yes, of course I have a back when I was a child.
✓ Yes, of course I had a bike when I was a child.
The sentence refers to a past time ('when I was a child'), so the verb should be in the past tense. Also 'back' is a misspelling of 'bike'. Use 'had' (past of 'have') and the correct noun 'bike'. Suggestion: use past tense verbs consistently for past-time references and check spelling of nouns. This maps to Grammar Problem Type ID 6.
× Hmm, you can see many people ride the bike on the road and the shield back is very popular in my city.
✓ Hmm, you can see many people riding bikes on the road, and the shield-back bike is very popular in my city.
Two issues: the verb describing an ongoing or habitual action should use the -ing form after 'see' when emphasizing observing an action ('see many people riding'). This corresponds to 'Verb + -ing form' but because the error also concerns tense/aspect for habitual observation, it maps to present tense issue (ID 6) per the allowed list. Also 'the bike' should be plural or generic 'bikes' to match 'many people', and 'shield back' is likely a compound noun; corrected to 'shield-back bike'. Suggestion: use 'riding' after 'see' for observed actions, match noun number with 'many', and hyphenate compound modifiers when needed.
× You can see them everywhere.
✓ You can see them everywhere.
This sentence is grammatically correct and matches the plural referent 'them' (bikes). No change needed. It is included to acknowledge there is no pluralization error here. This maps to Grammar Problem Type ID 1.