--- How old are you?

--- I am fifteen. I was born ________ the morning of May 1st 1990.

1. A.
   in
2. B.
   at
3. C.
   on
4. D.
   for

?How old are you?

?I am fifteen. I was born _______ the morning of May 1st 1990.

A. in

B. at

C. on

D. for

--- How old are you?

--- I am fifteen. I was born ________ the morning of May 1st 1990.

[　　]

--How old are you?

--I ________ 15 next Saturday.

1. A.
   am
2. B.
   am going to be
3. C.
   is going to be
4. D.
   am going to