Choose the word or phrase that best completes each unfinished sentence below or substitutes for the underlined word or phrase.
While the choir _____ Christmas carols, we were making them some coco
are singing were singing sing have sungMôn học
Chủ đề / Chương
Bài học
Chủ đề
Choose the word or phrase that best completes each unfinished sentence below or substitutes for the underlined word or phrase.
While the choir _____ Christmas carols, we were making them some coco
are singing were singing sing have sung