3. Fill in: A, the same, with, care, started in 1. We can not use knife to cut raw meat and cooked meat. 2. The British spend a lot of money . year on curries. 3. Vanilla extract can help .. toothaches. 4. Health trains provide medical . to people in Australia. 5. The RFDSA in 1928. ​

How I Met Your Mother is a comedy about Ted and how he fell in love. It all started when Ted's best friend, Marshall, dropped the bombshell that he was going to propose to his longtime girlfriend, Lily, a kindergarten teacher. At that moment, Ted realized that he had better get a move on if he, too, hopes to find true love. Helping him in his quest is his friend Barney, a confirmed bachelor with endless, sometimes outrageous opinions, a penchant for suits and a foolproof way to meet women. When Ted meets Robin, he's sure it's love at first sight, but destiny has something else in stor

Next to- рядом, next -следующий
Of-чего-то; на пример They are parents of Nina; 
Про on написано ниже.

Стулья с камином ---> There are chairs next to the fireplace. 

On и at значат примерно то же самое, а in значит в.
At чаще используется в таком контексте: I'm looking AT the picture; Look AT the board...
On чаще используется в таком контексте: There is a vase ON the table; Put your pen ON the table

Большой постер ... стене.-> на > There is a big poster on the wall.

Надеюсь, хоть как-то понятно...А то я так объясняю... :)