2 Were Peter and Zhankanger at the gym last Monday? Yes, they were.
3 Was Zhankanger at the park last Thursday? No, he wasn't.
4 Was Juliya at the theater on Wednesday? Yes, she was.
5 Were Zhankanger and Juliya at the zoo on Thursday? Yes, they were.
6 Was Peter at the park on Thursday? No, he wasn't.
7 Were Juliya and Zhankanger at the theater on Wednesday? Yes, they were.