Listen!Who is singing in the next room?这里为什么要用singing

问题描述:

Listen!Who is singing in the next room?这里为什么要用singing

Listen ,Look 等开头,后面的句子用现在进行时,即BE + DOING
故用singing
翻译:听,谁正在隔壁唱歌
加油!不明白再问!