25. When _______________ comes to saving energy, big changes start with small steps, like turning off the lights.
Seeing the car trapped in the snow drift, the driver didn’t know ______ it.
________ English will help to communicate _____ people from different countries in the world.
— I have just had my watch repaired. —How much did they ______ you?
— Can I help you, madam? — Yes, I bought this air conditioner here yesterday, but it _____ now.
She knows that as a secretary she must be pleasant and helpful no matter how busy she is or what kind of ____ she may be in.