看图，仿照下面的句子写一写。 例1: cauliflowers — What are these / those? — They're cauliflowers. 1. cucumbers — _______________________________? — _______________________________. 例2: dogs — Are these / those dogs? — Yes, they are. 2. mushrooms — _______________________________? — _______________________________. 例3: girls / boys — Are these / those girls? — No, they aren't 3. onions / cabbages — _______________________________? — _______________________________.