。
She scored 80 in English.
Literal
She [topic-は] English [in-で] eighty-points [object-を] took.
A clean exam-result statement. The で here marks 英語 as the domain of evaluation — the subject area in which the score was earned. ８０点 mixes Arabic numerals with Japanese counter 点 ('points'), the standard format on report cards and test scoresheets. In Japan, 100点 is the conventional perfect score for a single test (rather than a percentage scale), and exam scores are tracked obsessively in 進学校 ('college-prep schools') where ranking and standardized exam preparation dominate the curriculum. とった is written in kana here; the kanji 取る is also common, with no real difference in meaning.