英语虚拟语气选择题

英语虚拟语气选择题
If only he ___quietly as the doctor instructed,he wounldnt suffer so much now.
A.lie B.lay C.had lain Dshould lie
key C
为什么B不行呢.
You cant imagine that a well-behaved gentleman____be so rude to a lady
A.might B.need C.should D.would
key C
D A为什么不行呢.好像都是假设的意思.
How I wish every family_____a large house with a beautiful garden.
A.has B.had C.will have D.had had
key B
为什么A不行.这里好像没有强调过去式啊