Complete the following sentence by a few; few; a little; little

I.Complete the following sentence by a few, few, a little, little :
1.Since taking office last year, the government has made………………changes in employment policy that concerns the public.
2.We have ……………………………………… knowledge of market analysis.
3.. The government has done………………………………. or nothing to help the poorest people in this country.
4.. ………...…cities anywhere in Europe can match the cultural richness of Berlin.
5.I had………..…………….problems with the printer in the office, but it's been fixed now.
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