Ifthenewsafetysystem
问题详情:
If the new safety system _______ to use, the accident would never have happened.
A. had been put B. were put C. should be put D. would be put
【回答】
【*】A
知识点:虚拟语气与情态动词
题型:选择题
问题详情:
If the new safety system _______ to use, the accident would never have happened.
A. had been put B. were put C. should be put D. would be put
【回答】
【*】A
知识点:虚拟语气与情态动词
题型:选择题