1. Has she had an accident? A
2. Have you done your homework? A
3. Has the postman been yet? b
4. I've played tennis 3 times already this week and it's only Thursday! b
Объяснение:
1. Has she had an accident? - a) Past events with a connection to the present
2. Have you done your homework? - a) Past events with a connection to the present
3. Has the postman been yet? - a) Past events with a connection to the present
4. I've played tennis 3 times already this week and it's only Thursday! - b) With words of unfinished time