关于虚拟语气的

关于虚拟语气的
1.If you____in good health,I______you go on a trip yesterday.
A.were,would have let B.had been,would have let
我觉得答案有误,我认为应该选B,
2._______ he were trying to teach them all he knew.
A.It seemed that B.They had hoped
C.It seemed as if D.They thought
选什么,为什么?
1.A.这是错综时间虚拟条件句即条件从句与主句所指时间不一致.前半句If you were in good health,表示与现在事实相反,而后边主句I would have let you go on a trip yesterday.
表示与过去事实相反.
如果是错综时间虚拟句，意思似乎不通啊“如果你现在健康状况良好，我昨天就让你去旅游了”？
“如果你昨天健康状况良好，我就让你去旅游了”主句从句都是描述过去，意思才通顺啊。
2.因为teach them all he knew是不可能实现的愿望，所以用虚拟。