100 câu trắc nghiệm Thì quá khứ hoàn thành tiếp diễn (Past Perfect Continuous) có đáp án
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She ________ soup, so it ________ still hot and steamy when the visitors came in.

98/100

She ________ soup, so it ________ still hot and steamy when the visitors came in.

made / had been

was making / was

had been making / had been

had been making / was

Giải thích

Chọn đáp án: D