Read the following passage, then choose the correct answer to questions.

      I first met Maryam at a farewell party (21)_____ by Lan two years ago. Her charming face caught my attention. We exchanged greetings and became friends. Since then we have kept (22)_____ touch and shared our common interests. Maryam is two years older than I am. She is in grade 12 in a senior high school. She works her hardest and always comes top in her class. She especially loves (23)_____ sciences.

      I am proud of have a pen pal (24)_____ her. I hope our friendship will (25)______forever. I always remember her parting words, "This moment has become unforgettable for me. I will be thinking about you. Mai. " And this morning I got a letter from her. She said that she would come to Viet Nam next summer vacation. I am looking forward to (26)_____ her again. I am thinking of a plan for what we are going to do during her visit.