Here’s the text with the blanks filled in with the correct forms of the verbs:

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Dear Mary,

I have been expecting **1. to hear** from you. I hope you are OK. I am busy **2. with** my work but happy.

Last night I went to a party at one of my classmates’ home. I was really nervous. You know I often avoid **3. going** to the party because I have trouble **4. remembering** people’s names. Well, last night things were different. Before the party, I read a book about **5. improving** my memory; I practiced **6. doing** some of the memory exercises. They really helped. As I stopped **7. worrying** about what people think about me, I tried **8. paying** attention to what people were saying. And guess what? I had a good time!

I am even planning **9. to go** **10. dancing** with a boy from my class. Why don’t you consider **11. visiting** me? I really miss **12. seeing** you. Please write to me. I always enjoy **13. hearing** from you.

Best wishes,
John

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Feel free to ask if you need further assistance!