Ifhe_____thestorekeeper‘sscissors，hewouldhaveforgottentobuyapair.
B
本题测试的是虚拟语气的用法，其中的条件从句用过去完成时 had done，主句 谓语用 would/couldmight have+done.
Iwilldotheclearingifyousee_____thelunch.
Yourbikeneeds_____.You‘dbetterdoirightnow.
Itwasnotuntilshehadfinishedallherwork_____.
Hedrovefastandarrivedanhour_____ofschedule.
Bothofmybrothersarenowmarried，soIhavetwo_____.
