In the following passage some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each blank.

Comprehension:
During organised tours in Germany, tourists can (1) ______ a former Nazi compound 40 kilometres from Berlin (2) ______ the ‘Forbidden City’. Around twenty thousand people visit this place (3) ______ year to learn about Nazi military history. The Nazis (4) ______ militarily active at the compound, which was kept (5) ______ in a forest and behind a fence. They hid underground bunkers in country homes, and they planned much of World War II here.