--Could you please help me?We need another twenty chairs.----Sure.I’ll do it right now.
Cycling is a good exercise. _______, it doesn’t pollute the air.
— What should I do, doctor? — _______fit ,you should take more exercise.
Shandong is ______ the east of China, and Japan is ______ the east of China.
_______ was the temperature yesterday?
Most teenagers play games on their smart-phones(智能手机)_______fun.