Here is an example of a formal letter with some key words removed. Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. Note that you will lose points if you ask for hints!
Dear Sir or Madam,

I am the secretary of my college History Club. I your advertisement for the exhibition “The Roman Empire” and I am interested organising a group visit. I was wondering if I could ask you some questions our visit.

I would be grateful you could let me know whether we need to book. Also, how in advance do we need to say that we will coming? Our group is quite large, so I would also to know if there is a maximum group size.

Since we will probably coming for the day, I would like to know if there is to buy snacks, or if there is a picnic area where we can eat our own food.

I look to hearing from you and visiting your museum.

Yours faithfully
Justin Beiber