is ,who ,floor ,the ,sweeping?(用现在进行时组句

is ,who ,floor ,the ,sweeping?(用现在进行时组句 在这个句子为什么只能用that 不用 who Who is the woman ____ is sweeping the floor over there? ——Who is _____(清扫)the floor in the classroom?——Jack. There is a corner on the ground floor for foreigner who want to learn Chinese 根据括号里的适当形式填空Who is ▁(sweep)the floor in the classroom?求解。。。快啊 who is the woman __ is sweaping the floor over there?A who B / C that Dwhen 为什么不选A.而是选C The floor above the ground floor is the first floor.为什么不用on 用above the music room is( )the second floor she is sweeping the floor 对is swerpingshe is sweeping the floor 对is swerping the floor提问 The music room is on (one)floor. It is＿the third floor. My classroom is on the third floor My classroom is on the ground floor. Lily is sweeping the floor(改为现在完成时) My flat is on the t____ floor. our classroom is () the secoud floor A cinema is on the second floor 填空：jack is s------ the floor快