16 部分翻译
Now listen and check.
现在听录音并检查。
Read the sentences in Activity 5 aloud.
大声读活动5中的句子。
27 部分翻译
Think about what you must and mustn't/can't do in the situations. Write notes.
想一想,在这些情况下你必须、不要/不能做什么。做记录。
Now work in pairs. Say what you must and mustn't/can't do.
现在结对练习。说说你必须、不要,不能做什么。