Complete the dialogue with the words in the box.

see          happen      afraid      mean    how 
A  What’s wrong?
B  I’m (1) ___________ I burnt your birthday cake.
A  Really?
B  I don’t know (2)___________ it happened. You (3) _____, I set the timer but then a friend called.
A  Your girlfriend?
B  No, Sally’s not my girlfriend. Anyway, I forgot the cake was still in the oven. I didn’t (4) _____ to.
A     Well, you know I don’t like it when other girls call you.
B I know. It won’t (5) _______ again. 
 
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