从Ⅱ栏中选出Ⅰ栏中句子的正确答语Ⅰ
① Who's this? {#blank#}1{#/blank#}
② Are those your cousins? {#blank#}2{#/blank#}
③ Is that your photo? {#blank#}3{#/blank#}
④Where does your mother work? {#blank#}4{#/blank#}
⑤ Is he a doctor? {#blank#}5{#/blank#}
Ⅱ
a. She works in a police station.
b. No, they are my friends.
c. Yes, he is.
d. No, it isn't.
e. It is my mum.