Final answer:
General questions are formed by inverting the subject and auxiliary or adding 'do', 'does', or 'did'. The questions from the sentences are: What time do they arrive? Does he try to find time to see his friends? Do you work at the weekend?
Step-by-step explanation:
To create general questions from the given sentences, we should change the sentences to interrogative form by inverting the subject and the auxiliary or modal verb. If there's no auxiliary or modal verb present, we use 'do', 'does', or 'did' based on the tense. Here are the general questions formed from the provided sentences:
- What time do they arrive?
- Does he try to find time to see his friends?
- Do you work at the weekend?