根据图画内容，在下面短文的空白处填上一个适当的词，使短文意思完整、正确。

　Lin Tao's parents live in the country．They have a ______(71)．Its name is Cabby．On a ______(72) day his parents went to work in the fields ______(73) his little sister and Cabby．While they were ______(74), his sister walked to a river．Cabby followed her there．She was trying to pick a ______(75)．Suddenly she fell into the ______(76)．Cabby barked and jumped into the water at ______(77)．When his parents______(78) Cabby barking, they ran to the river．They saw Cabby carrying his sister with its ______(79) towards the side of the river．His sister was saved at last! Both his parents were very______(80)．His father touched the dog on the head and said．"Thank you, dear Cabby．"

Almost everyone __46__ the meanings of Mr, Mrs and Miss．Mr is used before the family names of men．Mrs is for married(结婚的) women and Miss is for unmarried women．But__47__is Ms? Some businessmen(商人) in the United States__48__Ms before a woman's name when they do not know whether(是否) the woman is married．Today, however, many women like Ms better __49__ Mrs or Miss．

The word "__50__" does not tell us whether or not a man is married．Some women want to be equal to(和．．．．．．平等)__51__in this way．These women feel that it is not important for people to know whether they are married or not．

There are some problems with "Ms", however．__52__women like it．Some like the older ways of doing things．Some find__53__difficult to read．Ms__54__[miz]．Young women like it better than older women do．It is difficult to know whether Ms will be used by more American women in the future．What do you think__55__it?

46．A．knows　　 　　　　　　 B．know　　 　　　　　　　 C．knew　　 　　　　　　　 D．is knowing

47．A．how　　 　　　　　　　　　　 B．what　 　　　　　　　　 C．who　　 　　　　　　　　　　 D．which

48．A．use to　　 　　　　　　　 B．using　　 　　　　　　 C．uses　　 　　　　　　　　　　 D．use

49．A．to　　 　　　　　　　　　 B．for　　　　 　　　　　 C．than　　 　　　　　　　 D．as

50．A．Ms　　 　　　　　　　　 B．Mrs　　　　 　　　　　 C．Miss　　 　　　　　　　　 D．Mr

51．A．men　　 　　　　　　　 B．girls　　　 　　　　　 C．ladies　 　　　　　　　　 D．boys

52．A．None of　 　　　　　　 B．Not all　　 　　　　　　 C．All　　 　　　　　　　　 D．Neither of

53．A．this　　　 　　　　　　　 B．that　　　 　　 　　　 C．them　 　　　　　　　　 D．it

54．A．sounds like　 　　　　 B．read like　 　　　　　　 C．is sounded like　 　 D．is sound like

55．A．at　　 　　　　　　　　　 B．of　　 　　　　　　　　　 C．on　　　　 　　　　　　 D．to

45．Sally went to Shanghai _________ a plane．

A．by　　　 　　　　　　　 B．with　　 　　　　　　　　 C．takes　　 　　　　　　　 D．on

44．How about__________with us?

　　　 A．go shopping　 　　　 B．goes shopping　 　　 C．going shopping　 　　 D．going shoping

43．There are some differences between Tom and Jim _____ they are twin brothers．

A．though　　　　　　　　　　 B．if　　　　 　　　　　　　 C．until　　　　 　　　　　　　 D．so

42．-There are still a few bananas．Would you like to have _____ one?

-No, thanks．

A．the other　　　　　 　　　 B．other　　 　　　　　　　 C．others　　　 　　　　　　　 D．another

40．I’m going shopping after I finish _____ the book．

A．read　 　　　 　　　　　 B．reading　　　　 　　 C．to read　　　　　　　　　　 D．to reading

41--- __________is it from your school to the zoo?

---It's about six minutes’ walk．

A．How much　　 　　　 B．How many　　 　　 C．How long　　 　　　 D．How far