她回头看却发现一只可怕的狗正跟着她。 (look back over one's shoulder)
This problem may lead to more serious ones if ____ unsolved.
I ____ you, but I didn’t think you would listen to me.
If you live in the country or have ever visited there, ____ are that you have heard birds singing to welcome the new day.
——Will $200 ____ the cost of the damage?——I’m afraid not. I need at least $100 more.
——Would you mind giving your advice on how to improve our business management?——if you make ____ most of the equipment, there will be ____ rise in production.