—Mum, may I have some cakes?— Sorry, there’s ____________ left in the box. I’ll go and buy some for you tonight.
Tony is busy _______ his homework.
——Let’s go to see the action movies. ——_________.
——Who are you _______? —— My mother.
Look! The man ________ under the tree is enjoying the cool.
People are really ______________ on the beach in summer (夏季).