That’s a bad habit of learning . ___, it is never too late for you to get out of it.
---It’s so hot. Why not ______ swimming? ---It’s a good idea. Let’s go.
Please be careful when you walk ______ the street. There are so many cars.
---Does Cindy go to school by _____ bus? ---No, she doesn’t. She takes ______ underground.
---____________? ---Yes, I want some strawberries and apples.
I want two kilos of eggs. Here ______ 20 yuan.