用下面括号的词填空，使句子通顺。（共5分，每小题1分）
（ shorts, teacher, firefighter, Whose, sweater ）
(1)Are these Jenny’s___________？
(2) ____________dress is this?
(3) I want to be a _____________.
(4) My mother is an English______________.
(5) Is this your blue___________？