英语高手欢迎进入 The mother with her son _____ at my office ____that rainy afternoon,
问题描述：
英语高手欢迎进入 The mother with her son _____ at my office ____that rainy afternoon,
A,was,on B.was,in C,were ,at
答
A,was,on The mother（ with her son）was at my officewith是附加结构,不影响单复数.on that rainy afternoon具体到什么样的下午,就要用on如：on Monday evening.而通常是 in the evening知识在于点滴积累,更在于不...