500 Câu trắc nghiệm tổng hợp ngữ pháp Tiếng Anh thi THPT Quốc gia (Phần 12)
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She and I……… each other since we were at secondary school

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She and I……… each other since we were at secondary school.

know

knew

have known

has known

Giải thích

Chọn C