Ifhe_____thestorekeeper‘sscissors，hewouldhaveforgottentobuyapair.
A、wouldnotseeB
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.
He was very_____to go，but he had no choice.
It was not until she had finished all her work_____.
I will do the clearing if you see_____the lunch.
Childrenwhoareover-protectedbytheirparentsmaybecome_____.
_____youunderstandthisrule，you‘llhavenodifficultyindealingwithsuchproblems.
