Помогите решить в краткой форме
They can sing
+
-
?
+/-


И она имеет собаку
+
-
?
+/-

Ответ:

+They can sing

- They can not sing

? Can they sing?

+/- Can they sing or not?

+She has a dog

- She does not have a dog

? Does she have a dog?

+/- Does she have a dog or no?

Как то так..