听短文填空。(8分) Tony:Hi,Jenny! It will he Helen' birthday next ________.What gift would you ________ her? Jenny:I want to buy a ________ for her.She's practising baseball now. Tony:That's a good ________! Jenny:I'll put the ball into a beautiful ________ and let her guess.She'll find that's a wonderful present. Tony:Great! That's very interesting. Jenny:What's your ________,Tony? Tony:It's a secret.I can't ________ you now. Jenny:OK.Let's go to ________ a baseball right away. Tony:Let's go!