1.Mike collected all the necessary camping things yesterday evening, didn't he?
Did Mike collect all the necessary camping things yesterday evening?
Did Mike or Olga collect all the necessary camping things yesterday evening?
Who collected all the necessary camping things yesterday evening?
When did Mike collect all the necessary camping things?
2.The biggest tennis competition takes place at Wimbledon every summer, doesn't it?
Does the biggest tennis competition take place at Wimbledon every summer
Does the biggest tennis competition take place at Wimbledon every summer or winter?
What takes place at Wimbledon every summer?
When does the biggest tennis competition take place at Wimbledon?