单选题
1分
At last John Smith (stepped down) as the company's CEO and returned to his roots in software researc...
At last John Smith (stepped down) as the company's CEO and returned to his roots in software research.
参考答案: B
参考解析: A. Lets read this book 让我们读这本书吧
B You've been saying that forever! 你一直这么说
C. There must be ten here 这肯定有十个/本 根据 " It's about a bear and a cat that become friends",判断是单数,对应this book,另使用祈使句提出要求,选A