20 câu Trắc nghiệm Tiếng Anh 12 Cánh diều Chuyên đề 13: Động từ khuyết thiếu (Modal verb)
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It's good I got interested in that bottle. Granny ________ the poison taking it for her asthma medicine because the bottle was unmarked.

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It's good I got interested in that bottle. Granny ________ the poison taking it for her asthma medicine because the bottle was unmarked.

might have swallowed

had swallowed

could swallow

was able to swallow

Giải thích

Chọn đáp án A