Поставьте в passive or active Coffee (1) (say) to originate from Kaffa in Ethiopia and most species of coffeeplant (2) (find) in the tropics of the Eastern Hemisphere. The species which (3)(think) to be the earliest coffee plant (4) (ever cultivate) by man is Coffee Arabica. Today it (5)(grow) mostly in Latin America. The coffee shrub (6) (reach) a height of 8-10 metres and (7) (have) white scented flowers. It (8) (produce) a red fruit which (9) (call) cherry. The cherry (10) (contain) two seeds which (11)(join) together. These seeds, which (12) (also know) as beans, (13) (first roast) and then they (14) (grind) to make coffee. The grounds (15) (then process) in a variety of different ways. Sometimes they (16) (filter) and sometimes they (17) (soak) in water to make the drink which is popular with so many people. Coffee is available as grounds or as instant coffee powder and (18) (drink) by one third of the world’s population.​

1.a
2.a
3.the
4.a
5.the

В данном случае как ты выше написал нам нужно вставить артикли.
Какие же артикли в английском языке бывают ?
Неопределенные(a, an) и определенные (the).
Неопределенные артикли у нас используются тогда,когда говорящего не беспокоит конкретика.
I am a student. Я студент (один из многих).
This is an apple. Это — яблоко (какое-то одно из многих).
артикль (a) используется тогда, когда существительное начинается на согласную букву : a cat, a book, a table
артикль (an) используется тогда,когда существительное начинается на гласную
букву : an apple, an orange
Определенный артикль the используется тогда,когда говорящий хочет сказать про какой то конкретный предмет,выделить его:
Where is the pen? Где ручка? (известная нам)

I live in a beautiful, large and comfortable house. Our apartment is on the 12th floor. There are 6 rooms: living room, kitchen and 3 bedrooms. As soon as you walk into the house, you come into the hall. On the left is a sofa and a small hanger, and the right wardrobe with outerwear. There's also a small shoe cabinet and mirror above it. Next lounge. I think this is the biggest room in the house. There are two bookshelves and a large desk with a chair. And in the middle of the room there is a small rectangular chair, around which a sofa and chair in front of the TV. Along the left side of the living room with two rooms: a bedroom, which has a sofa, wardrobe, bookshelf and desk; kitchen-a place where the whole family eat. There we found two refrigerators, rectangular table, five wooden chairs, dishwasher, faucet, stove and a few shelves. Passing through the door you find yourself in the hallway. Ahead you can see two bathrooms. To the left is a bedroom of my parents. The room has a bed on which two pillows, bedside table, desk where my mom painted every morning and a large closet with clothes. The last room is my room. I guess this is my favorite place. In her beautiful white-green wallpaper, bed, two bedside tables, a sofa, 2 closets with clothes, a bookcase and my desk at which I spend most of my time. I very much love my home. My home is my castle.