What can waiters or waitresses do to increase tipping at the start or the end of the meal? Giving________at the start or the end of the meal.

Which of the following is not about O. Henry? A: American long story writer. B: His stories are known for their surprise endings. C: his most famous stories are: "The Gift of the Magi" and "The Cop and the Anthem". D: Many of his stories deal for the most part with ordinary people: policemen, waitresses

阅读下文，为各空选择合适的词，排出所选词的顺序 Dear Sir or Madam, I am writing (1) for your hotel’s considerate service when I held my grandfather’s 90th birthday party. All of the guests were (2) the party. As they stepped into the hotel, (3) was given by waitresses and waiters. The dishes were pretty delicious, and suited everyone’s taste. Besides, the staff (4) the elderly guests. More importantly, many interesting activities were arranged after dinner, making everyone joyful. It is (5) that leads to the success of the party. Words fail to express my gratitude. Yours faithfully, David a) were friendly to b) to express my heartfelt gratitude c) your perfect service and excellent efforts d) really impressed by e) a warm welcome