Mark the letter A, B, C, or D to indicate the best sentence built from the words given.Câu hỏi When/ I/ come/she/ learn Math/ this time/ last Friday. A. When I come, she was learnt Math at this time last Friday. B. When I came, she were learning Math at this time last Friday. C. When I came, she was learning Math at this time last Friday. D. When I come, she was learning Math at this time last Friday.