At times, worrying is a normal________ to a difficult event or situation—a loved one being_______ in an accident, for example.

---Few children are as bright as he is, and also, he worked very hard . ---It’s no______ that he always gets the first place in any examination.

A new ______ to teaching languages is being used here, and it has turned out to be very helpful to the students.

As a result of destroying the forests, a large ________ of desert ________ covered the land.

. The _____ look on his face suggested that it was he who had broken into the house.