themayorthefoundationstone,buthewasilllastnight,sothemayoressisdoingitinstead.A.wastolayB.wouldhavelaid为什是A?wouldhavedone没有本来要做什么的意思吗?

Question

the mayor ___the foundation stone ,but he was ill last night ,so the mayoress is doing it instead .
A.was to lay B.would have laid
为什是A?would have done 没有本来要做什么的意思吗?

Answer 1

would have done,表示过去本来要做而没有做,the mayoress is doing.用了进行时,所以前而只要构成过去将来时.应选A