We have started seeing Unit 12 ‘Let’s celebrate’. I have set the Listening exercise on page 161 for homework, which you can self correct with the key. Next Tuesday we are going to correct the grammar exercises on page 228 (Expressing obligation and permission)

We have also been practising ‘So do I’, Neither do I, …’, which we’ll be revising on Tuesday.
Here is a useful link to check how to use these structures and practise them in context: