Demand, complain and apologize
Possessive pronouns in the accusative & dative: ihrem/-r/-n, Ihrem/-r/-n

Describe a place, tourism vocab
Possessive pronouns in the accusative & dative: unserem/-r/-n, eurem/-r/-n

Understand online comments
Question words and pronouns in the accusative & dative: wem, wen, welcher, welchen, jemandem, ...

Baggage and paperwork words
Dative reflexive verbs & sentence structure: mir etwas anziehen, mir etwas kaufen, mir etwas leihen

Hotel room amenities and their convenience
Order of dative & accusative in a sentence: both objects are nouns

Travel words, neighborhood rules
Order of dative & accusative in a sentence: one object is a personal pronoun

Blow off steam, make excuses
Order of dative & accusative in a sentence: both objects are personal pronouns

Accusations, reasons, and excuses
Subjunctive II: hätte

Reproach, stroll down memory lane
Subjunctive II: würde

Complain, ask for advice, give advice and express a plan
Subjunctive II: sollte

Furniture and apartment vocabulary extension
Two-way prepositions: vor

Describe a city adventure, tell a story
Two-way prepositions: zwischen