Ask and answer, as in the example. 1 she/a yellow dress? Is she wearing a yellow dress? No, she isn't wearing a yellow dress. She's wearing a yellow dress. 2 they/play tennis?

Ответ: Are they playing tennis? No, they aren't playing tennis. They are playing football.

1. Чтобы задать вопрос в Present Continuous, используем форму глагола to be (am, is, are) перед подлежащим. В данном случае, подлежащее - "they", поэтому используем "are". Вопрос: Are they playing tennis?
2. Чтобы дать отрицательный ответ, говорим: No, they aren't playing tennis.
3. Чтобы показать, что они делают на самом деле, говорим: They are playing football.

Ответ: Are they playing tennis? No, they aren't playing tennis. They are playing football.