What is the past perfect tense of kaufen?

Um wieviel uhr geht man zur schule? a. um halb zwölf. b. morgens um halb sieben. c. um drei uhr nachmittags. d. um neun uhr abends.

If anyone could teach me some german that would be great, i’m considering taking a german course and wanted to know some basics first. all is appreciated; )

Wich of the following this an unbiased way to ask a question about possible vacation destinations? a.) would you like to go to rainy london? b.) would you like to go to windy chicago? c.) would you like to go to sunny miami? d.) would you like to go to los angeles?