1) ✖️He drank half glass of milk ✔️He drank half a glass of milk Half a glass (а также an hour, a day, a mile и тд) это сокращенная форма от half of a glass. Поэтому a нужно сохранить. 2) ✖️ I paid six pound for the book ✔️I paid six pounds for the books (тут, видимо, злую шутку играют выражения типа three hundred, two thousand и тому подобное) 3)✖️I told them not to make noise. ✔️I told them not to make a noise. То же самое касается: to make a mistake, to make a fortune, to make a will, to make an impression, to make an experiment, to make an attempt 4)✖️Can you supply me all I need? ✔️Can you supply me with all I need? И точно так же: He provided his son with all he needed