As reported, these are the missing presentations. They belong to units 4B,4C, 5A and 7C.
Help yourselves if necessary!Emiliano
4B Infinitive or gerund?
4B Self-help books
4C Conditional sentences
4C Adjectives + prepositions
4C Revise and check
4C Writing: a complaint letter
5A Permission, obligation & necessity
5A Mini debates
5A Prefixes
7C Joke telling
See you guys!
Emiliano
