Bộ câu hỏi: Thì và sự phối thì (Phần 1) (Có đáp án)

Phillips will have lived in this small town for five years

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Phillips will have lived in this small town for five years ______ .

when he graduated from university

by the time he graduates from university

once he graduated from university

since he graduated from university

Giải thích

Chọn B