中国大学MOOC: Some people become （4） in winter, when the days are dark and most people spend less time in the open air.
举一反三
- When people meet their friends, they spend some time ______ conversation.
- When people meet their friends, they spend some time ______ conversation. A: in B: about C: on
- 人们在QQ和微信上花的时间太多。 A: People spend some time on QQ and WeChat. B: People spend too much time on QQ and WeChat. C: People spend little time on QQ and WeChat. D: People spend more time on QQ and WeChat.
- People in the UK spend about most of the free time in the pub.
- 中国大学MOOC: Some people prefer to plan open houses at their home ________.