Rose is my good friend.She told me that she would come to Japan for vacation in July.But she was very anxious.She said she didn't know what to do in Japanese restaurants.I had to ask her to understand these table manners and tell her what to do in the restaurant.
    Some restaurants in Japan have tatami floor（榻榻米地板）.When you step in a restaurant，you must take off your shoes.When you sit at the table，you will receive a small wet cloth at most Japanese restaurants.Use this to wash your hands before eating，then carefully fold it and set it aside on the table.Don't use it as a napkin，or to touch any part of your face.
    Before and after a meal，it is important to say traditional thank-you words.You can make a little noise when you eat.For example，it is common to make some slurping noises while eating noodles.Japanese can say it tastes better if you slurp.For sushi，you should eat up.It is polite to lift small bowls of rice or soup when you eat.After you finish your meal，it is good manners to restore all your dishes to the way they were at the beginning of the meal.For example，you can put chopsticks back on the chopsticks shelf.I think these table manners are helpful to her.

（1）Why is Rose anxious？

Because she doesn't know Japanese table manners.

Because she doesn't know Japanese table manners.

（2）What must Rose take off when she steps on tatami floor？

Her shoes.

Her shoes.

（3）What does the underlined word "it" in Paragraph 2 refer to（指代）？

The wet cloth.

The wet cloth.

（4）When to say traditional thank-you words is important？

Before and after a meal.

Before and after a meal.

（5）In Paragraph 3，what can we learn？

Table manners when eating in a Japanese restaurant.

Table manners when eating in a Japanese restaurant.