_______foryourlaziness，youcouldhavefinishedtheassignmentbynow.
A、HaditnotbeenA
句意： 要不是你懒惰， 到现在你就能完成任务了。 本题是一个省略 if 的虚拟条件句， 主句用 could have done表示与过去事实相反，条件从句应用 had done形式， had 要提前构成倒装。
Itisimportantto________yourskinfromtheharmfulstrongsunlight.
Iftheoperation________carefullyprepared,itwouldnothavebeensuccessful.
The central theatre has a seating ________ of more than 3, 000 people.
They prefer to _______ the rest of the morning walking in the garden.
I'd like to remind you that there is no_____on the part of suspects to answer questions.
