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.
Your bike needs_____.You ‘d better do i right now.
William has cut his smoking_____to five cigarettes a day.
I can speak_____German.
The girl who found the ring received a generous_____of five pounds.
He‘sworkinghard_____.
