用所给单词的适当形式填空。
Lucy       (be) my friend.
Can you buy a T-shirt for       (I), Mum?
— Lucy, is this       (you) skirt?
— No, it isn’t.
Look, it’s      (rain) today..
     (he) new shorts are blue.
How many        (pair) of shoes do you have?
Whose        (dress) are these?
Let’s        (guess) what that is.
      (be) you a student?
I often go        (shop) with my friend.