Đề thi Cuối kì 2 Tiếng Anh 7 Global Success có đáp án - Đề 9

The light bulb _________ by Thomas Edison in 1879. A. was invented B. invented C. is invented D. were invented

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The light bulb _________ by Thomas Edison in 1879. 

was invented

invented

is invented

were invented

Giải thích

Đáp án đúng là A