1. Your trousers are d_____. You must wash them.
2. Have you seen my pen? I can't f_____ it.
3. We usually have three m_____ a day.
4. S_____ is the best season for planting trees.
5. We listen with our e_____.
6. Fifteen and twenty-five is f_____.
7. It often s_____ in the north of China in winter.
8. —Have you ever been to Xi'an?
     —Yes, I have been there t_____.

     Jack is an eleven-year-old boy. He has a father, a mother, a grandfather and two brothers in his family. Jack is the youngest ( 年龄最小的).  One of his brothers,  Tim,  is fourteen years old. T he other brother,
Mike, is fifteen years old.  What's eleven and fourteen and fifteen? That is Jack's father John's age.  Jack's
mother is very young. She gives birth to (生下) Jack when she is twenty-five years old. Jack doesn't know his grandfather's age. He is very old but very healthy.  

根据短文内容,判断句子正(T)误(F).
(     ) 1. There are seven people in Jack's family.
(     ) 2. Jack doesn't have a sister.
(     ) 3. John is thirty years old.
(     ) 4. Jack's mother is twenty-five years old.
(     ) 5. Jack's grandfather isn't old and he is healthy.