should he need an operation, she ___ (take) to the hospital.
问题描述：
should he need an operation, she ___ (take) to the hospital.
His letteraddress to the wrong number,reached me late
怎么填的说一下方法
His letter_____（address） to the wrong number,reached me late
答
Should he need an operation,she would take him to the hospital.
如果他需要动手术,她会带他去医院的.
这是一个虚拟语气,所以主句用would
后面用had addressed答案是had taken 和having been addressed 怎么填的不清楚这句话完整的说是这样1----His letter,which has been addressed to the wrong number, reached me later.逗号不能落下，后面which has been addressed to the wrong number这句是原因分句。若是去掉which的话，就是2----His letter, having been addressed to the wrong number, reached me later.要么用had taken, 则表示3-----His letter had taken to the wrong number, reached me later.这句则表示事情前后进过。