单项选择题
A．It’s a good one. B．It’s a good idea. C．You are right. D．Tomorrow morning.
A．A recorder. B．A heater. C．A computer. D．A motorbike.
A．He came to our company last year. B．I think he is a nice person. C．He was in London 5 years ago. D．I have met him somewhere before.