Many/A lot of/Much foreigners live in my neighbourhood but very few/many/little of them can speak English.Any/a little/some/of them are Italian and there are also a little/few/a few Mexicans.

完整且正确的写法是：
Many/A lot of foreigners live in my neighbourhood but very few of them can speak English. some of them are Itilian and there are also afew Mexicans.
首先，foreigners为复数，不应该用much. a lot of 既可以修饰可数名词也可以修饰不可数名词。many 只能修饰可数名词。
修饰them的也只能是能修饰可数名词的修饰词。因此，第二个也不能用little，又句子中有but，是转折句，用few，表示“几乎没有”
第二个句子意思是：他们中一些是意大利人还有一些是莫斯科人。
any与some的区别是，any一般用于否定句和疑问句，而some一般用于肯定句。因此，第二句第一个用some。
few与a few的区别是few一般用于否定句，而a few用于肯定句。a little只用于修饰不可数名词，因此，最后一个用a few 。