Bộ 4 Đề thi giữa kì 1 Tiếng Anh 12 Thí điểm (có đáp án - Đề 3)

The world’s first computer by the University of Pennsylvania in 1946

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The world’s first computer ____by the University of Pennsylvania in 1946.

was built

is built

has built

were built

Giải thích

Đáp án A