WhileI的精选

问题详情：WhileI________totheprograms,mymother________outside.A.listened;waswashing                                     B.waslistening;washedC.waslistening;waswashin...

问题详情：WhileI      anovel，someone     atthedoor．  A．read，wasknocking               B．read，knockedC．wasreading，knocked．       D．wasreading，wasknocking【回答】C知识点：动词时态题...