A.Weather. | B.Actions of others. |
C.Personality. | D.Age. |
A.It is a kind of artificial chemical. |
B.It makes us worried by affecting our brains. |
C.It is needed by us all to keep fit. |
D.It is in the sunlight. |
A.We feel good when we are in the bright cool weather. |
B.We will be happy when we are caught in the rain. |
C.All people in Norway and Sweden feel sad in winter. |
D.The more vitamin D you have, the happier you’ll be. |
A.Why Do We Feel Sad? |
B.The Weather Influences People’s Emotions |
C.People Need More Vitamin D |
D.We Can Hardly Change the Weather |