we__(sing)when the teacher came in.the young man__(become)a

we__(sing)when the teacher came in.the young man__(become)a She pretended______ a book when the teacher came in. when the teacher came in ,we stop ( ) i _____cards when the teacher came in . 22.She stopped ________when the teacher came in.A.to sing B. When the teacher came in ,the students stopped ______(talk ) When the teacher came in,the students s___talking the student stoped ( )(talk) when the teacher came in. the students stopped talking when the teacher came in The students stopped talking () when the teacher came in. The students stopped______(talk)when the teacher came in. When the teacher came in,the students were____ themselves __