问题

I know it’s normal for such a thing to happen, but we _____ it if we’d been more careful.
A:need have avoided
B:could have avoided
C:will have avoided
D:had avoided
B:could have avoided
C:will have avoided
D:had avoided
正确答案是:
同类题型
may have a chance to be successful if he doesn’ttry his best.
11—Do you know where Bob is? —He has won a holiday for two people to New York He ______ his mum
here is my toy car You promised.–_____, my dear, but you knowmum is pretty busy today. Tomorrow, OK
erabigcompany_______asmallone,theproductalmostalwaysgetsworse