Alex:Hi,Carol.Wow,what are those?

Carol:Hello,Alex.Oh,these are some of the interesting inventions that I’m writing about for my English homework.

Alex:I see…What’s that,then?

Carol:They’re shoes with lights.You use them for seeing in the dark when you get up at night.

Alex:Oh,that’s a cool idea! I always hit my toe against  something on the way to the bathroom at night.

Carol:Next is a special ice-cream scoop.This is my favorite invention.It runs on electricity and becomes hot.

Alex:I know what it’s for! It’s used for serving really cold ice-cream.

Carol:Yes,that’s right! The last invention I’m going to write about is shoes with special heels.You can move the heels up and down.

Alex:What are they used for?

Carol:Well,you can change the style of your shoes.You can raise the heels if you are going to a party or lower them if you are just going out for shopping.