--What beautiful shoes you’re wearing! How much are they?--They only __________ 10 yuan.
---Look at these stamps. I __________ them for five years.---Wow, they are wonderful.
--- What are you doing?---I’m _________ the Internet.
---My dream is to be a teacher.---Really? You must ___________ children, I think.
--- Why are you so ______, Helen?---I thought I had lost my purse, but I didn’t. I found it in my study!
--- Does Mary work carefully?---Yes. I think she works __________ in our class.