1 it/rain? Is it raining? No, it isn't.
2 they/fish? Are they fishing? Yes, are they.
3 the girl/read a magazine? The girl reading a magazine? No, she.
4 they/listen to music? Are they listening to music? No, they aren't.
5 boys/wear trousers?
Are boys wearing trousers? No, they aren't.
6 the girl/hold a fishing rod?
Is the girl holding a fishing rod? Yes, she is.
Ответ: Are boys wearing trousers? No, they aren't. Is the girl holding a fishing rod? Yes, she is.