Which of the following is the key to Grace´s success?
A、Taking college courses at 13.
B、Doing high school and college at the same time.
C、Being born in a professor's family.
D、Being devoted to her studies.
五、补全对话(共5句;每句满分为3分,共15分。)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:Mary与Bill不期而遇,邀请他一起吃晚饭。但Bill当晚7点要去,下周一回来。Mary让Bill回来后给她打电话。M:Bill, is that you? I haven’t seen you for a long time.B: Hi, Mary. Great to see you again._____51_____?M:Fine. Why don’t we get together and have a chat? How about_____52_____ this evening?B:Well, it sounds great, but I’m_____53_____at 7 o’clock.M:What a pity!B:Well, I’ll be back_____54_____We can find a time to meet again.M:Okay._____55_____when you are back.B:No problem. Goodbye!M:Bye!