You must not chatter ________ on serious diplomatic occasions.
举一反三
- It's nothing serious if you make some mistakes in the examinations. But you must learn ______ the mistakes. A: of B: in C: / D: from
- 中国大学MOOC: Some of the following greetings are for formal occasions and some are for informal ones. Please choose the greetings for formal occasions.
- When must the symptoms be considered serious?
- There are occasions one must yield. A: that B: which C: in which D: when
- ---The coming interview is very important. You must treat it______. ---Thank you for your advice. I have already been preparing for it. A: serious B: seriously C: careless D: carelessly