问：当出现…………while………….时,while前是什么时态,while后是什么时态?
问题描述：
问：当出现…………while………….时,while前是什么时态,while后是什么时态?
答
前后时态一致即可,while译成”而“ He is reading while I am listening to music; They are teachers while we are students.At that time he was in Shanghai while she was inTianjin.