Read the following letter and choose the best answer

Dear Anna,

Thanks (1) ………….the postcard. I’m glad everything's well with you. I myself am (2) ………….well. I should be (3)…………. when I choose my food, because I have to change my eating habits (4)…………. improve my health. I can eat green salad, fresh fruit, (5)………….  I want. Also I can drink tea. Every day I should (6)................ chicken, eggs, fish, beans or cheese. I must cut down on eating sugar, butter and drinking coffee, too.
 
Actually, it isn’t easy for me (7)................. down on drinking coffee. As you know, I like drinking coffee but I (8)…………. obey the doctor’s advice. This is for my (9) ………….
 
What about you? I hope you’re very well. I’m looking forward to hearing (10)…………. you as soon as possible.
 
All my best wishes,

Yours,

Allen. 

(1) ....................

• A. 
  to
• B. 
  for
• C. 
  about
• D. 
  on