– My bike is missing. I can’t find it anywhere.– I’m afraid you have to buy .
The________junk food you eat, the________you will be.
— The problem is a bit difficult . — ________ask your teacher for help?
—Did you know that the earth is the home of animals?
—Which country has________population ,China , India or America? — China.
I bought a new sweater last weekend. It________me 120 yuan.