In Venezuela, there are some special rules of etiquette that people usually follow when they are dining. You need to keep in mind the following things:

　　·None of the guests should talk with just one person. The conversation should be with everybody. In addition, it should be related to topics interesting for both men and women.

　　·In a formal dinner, the guest is never served more than once. The only thing that can be served more than once is the dessert, the liquor , and the wind.

　　·It is not polite to refuse a plate. If you don’t want something, just eat a small portion.

　　It’s important to_______________________

　　·The first plate (the appetizer开胃小吃)should always be served on a separate plate.

　　·The silverware should be placed in the same order that it will be used: the first one much farther away from the plate and the last one much nearer the plate. The forks or the desserspoons can be placed on the table when the dessert is served.

　　·The wine and water glasses are placed in front of the plate to the right of each guest. The water glass is on the left side. When we serve the coffee and liquors, we should bring the bottles and the glasses on a tray.

　　·Finally, as a sign of good taste, we usually offer the guests a little humid towel with water and lemon so they can clean their hands, even if they never get their fingers dirty during the meal. This should be done after the dessert is finished.

　　By following these little rules, you will be successful at your dinner, as a guest or as a hostess.

　　Question: What should be filled in the blank?

The dining room is behind our school science lab.  　next to the library.

1. A.
   It’s
2. B.
   they are
3. C.
   The dining room
4. D.
   its

The dining room is behind our school science lab.

  　next to the library.