Fill in the gaps with suitable prepositions or adverbs where necessary
1. The same economic problems had led______ the collapse of the government.
2. Many people have dramatically reduced the amount ____meat they consume.
3. Economic activity was amount greater_____ the first part of the year.
4. The game had to be abandoned_____ the rain.
5. She's been admitted to hospital_____ observation.
6. Employees should not engage _____ political activities without managers' permission.
7. She never responded ____ my letter.