Read the questions and choose the correct options

[ ]old are you?

1. [Where|Who]
   are you going to stay in Germany?
2. [How|How many]
   books did you read last year?
3. [Whose|Who]
   is your best friend in your class?
4. [How much|How many]
   time do you spend surfing the internet?
5. [What|Where]
   are you going to have for dinner?
6. [How often|Which]
   do you visit your grandparents in Portugal?