Your mother prepared delicious food for us yesterday. Please say thanks ____ her.

I will drive to the station to buy a ticket toBeijing for next Sunday—______ Actually you can order a ticket online

intelligence, you are no worse than others Itis your attitude that makes the greatest difference

People are ________ the use of alternative energy sources because the rate ________ we are now assuming fuels like gas and oil is shocking and they may run out one day.

Can you tell me why you learn English so well —— It’s very simple . ______ you work , ______ grades you will get .