Topic 5: Who? What? Where? When? How?

A few pointers:

• Adding か to the end of a sentence turns it into a question. For example:
  ケーキです = It's cake.
  ケーキですか = Is it cake?
• Remember でした is past positive, with か on the end you're asking if there was something. For example:
  ケーキでしたか = Was there cake?
• Adding a question word, to ask a basic question. For example:
  だれですか = Who is it?
  いつですか = When is it?
  なんですか = What is it?
  Again, using past positive would ask 'Who was it?', 'When was it?', 'What was it?' and etc.
• It also works with negatives both past or present. For example:
  ケーキをたべませんでしたか is asking 'You have never eaten cake?', and etc.