Question

1 look at the words in bold. find the common mistake.
8.
a: when online games do help people? b: if games use special skills, children learn new things.
a: when online games do help people? b: if games use special skills, children learn new things.
a: when online games do help people? b: if games use special skills, children learn new things.

Explanation:

The common mistake is in the structure of the question "When online games do help people?". In English, for a question with "when" and a main verb (help), the auxiliary verb "do" should follow the subject "online games", so the correct structure is "When do online games help people?". Among the options, the third option has the bolded part "online games do" which shows the incorrect word order (subject "online games" followed by "do" instead of "do" before "online games"). The first two options' bolded words ("skills", "learn") are not part of the grammatical mistake in the question structure.

Answer:

The option with the mistake is: A: When online games do help people? B: If games use special skills, children learn new things. (The third option among the given choices, with "online games do" bolded)