填空题
根据中文提示，将对话中缺少的内容写在线上。这些句子必须符合英语表达习惯。打句号的地方，用陈述句；打问号的地方，用疑问句。
提示：Jack与朋友Mary一道去饭店吃饭。Jack要吃两块牛排，Mary则要奶酪汉堡和炸薯条。侍者问他们想喝点什么，Jack说喝啤酒。侍者又问要什么甜点，Mary说要水果沙拉。
Jack又接着要了黑咖啡。
Waiter: {{U}}(51) {{/U}}.
Jack: I'm very hungry. I'd like two
beefsteaks.{{U}} (52) {{/U}}Mary?
Mary: I don't want much to
eat. I'll have cheeseburger and French fries.
Waiter: O.K.{{U}} (53)
{{/U}}
Jack: Two cups of beer, please.
Waiter: What sweet would you
like?
Mary: {{U}}(54) {{/U}}
Jack: So will I. And we'll have two
coffees, please.
Waiter: Black or White?
Jack: {{U}}(55)
{{/U}}
Waiter: Would you like anything else?
Mary: Not now, thank
you.