If we( )repeated attempts, we wouldn’t have succeeded.
A.正确答案Bhaven’t made
B.hadn’t made
C.didn’t make
D.wouldn’t make
If we( )repeated attempts, we wouldn’t have succeeded.
If we( )repeated attempts, we wouldn’t have succeeded.
A.正确答案Bhaven’t made
B.hadn’t made
C.didn’t make
D.wouldn’t make