When I went into the office,the teachers were busy ____ preparing their lessons.(prep.)

when i went into the room,I found it ()alreadyis cleandwas cleaningto cleanecleaned 英译汉:I knocked into a tree when I went to the railway station for my friend. When I went into the office,the teachers were busy ____ preparing their lessons.(prep.) I first began to feel sick when we went into the classroom. The students seemed ---the homework when I went into the classroomAto discuss Bto be successing Cto discussing Ddiscussing要原因.. I got into a ____ when I found the door was locked.He _____ with a smile then went away. Yesterday i caught him_________my dictionary when i went into the classroom.为什么填写taking而不是being taking Who went into our house when we were at the When I went into classroom, the final bell——(ring). 为什么要用过去进行时? 英语翻译I went into the house and ran up the stairs.When I got to the top,I saw a field full of blue horses. When I went into the room,I saw Tim sitting on the floor surrounded by boxes,从句里为什么没有be为什么sitting前没有be动词? I knocked into a tree when I went to the railway station for my friend.--I suppose you( )too fast.选择drove还是选择 were driving填空? i saw he into the room空处应填goes还是went 同义句转换：1.They got to Nanjing the other day.They ________Nanjing the other day.2.When I went into the room ,I found Lily at home by herself.When I ____the room ,I found Lily at home alone. When I went into the reading-room,I saw there were () there.A.much people B.a lot of peoplesC.many peoples D.lots of people I was ____what I wanted to speak when my teacher went into the classroom.A.putting down B.putting off C.putting away I saw three girls ___ when I went into the classroom.理由a.dances b.to dance c.danced d.dancing when i went into the office,the meeting had—— ——for half an hour.（已召开）英译中