When the students came into the room,the teacher__on the blackboard.应该填什么时态A,is writing B,was writing C,wrote应该选哪个,为什么

The students stopped______(talk)when the teacher came in. When the teacher came in ,the students stopped ______(talk ) All the students stop__________(talk)when the teacher comes The students------(stop)talking when the teacher came in when i entered the classroom,the students _abouttheir marks.(talk) The students look _ when they wear school uniform(order) I met him when ____(经过)by the street corner.What was the _____(人数)of China 1993?The teacher let his students ask and answer the questions in _____(一对对).The workers cut the big wood into small______( 片)We can see those apples,but we ca they were talking to their teacher.I saw the students.（用when连接两个句子）--------I saw the students--------------. Please be quiet.the teacher s________ to the students when he walked into the classroom. When the teacher came into the classroom,the students _____(stop) taking at once The students stopped talking when the teacher came into the classroom.翻译 When the teacher came into the classroom,the students _______ (stop) talking at noce When the teacher comes into the classroom,all the students stop talking( )and keep quite. When the teacher comes into the classroom,the students all stop talking.我只知道这一题 连词成句 the,students,singing,song,the,teacher,entered,the,classroom,a,were,when when the students saw the teacher,the noise stopped是什么句型 用介词填空 when the bell rang ,all the students ruched [ ] the classroom The students _____(talk) about the film when the teacher came in.