1．There are t         months（月）in a year．

2．—What’s the boy’s name?   —Sorry, I don’t k        ．

3．The red shirts on s         are very cheap．  

4．－Sorry, I don’t like green sweaters． 　－What about the y         one? 

5．My grandfather doesn’t play s        , but he often watches them on TV． 

6．Tom, your keys are in the d         , not on the desk．

7．—What’s that u         the sofa?  —Oh, it’s my English dictionary．