He didn't agree with me at first but I__
题型:选择题
问题:
He didn't agree with me at first but I _______ persuade him. [ ]
A. was able to
B. could
C. could be able
D. should
He didn't agree with me at first but I _______ persuade him. [ ]
A. was able to
B. could
C. could be able
D. should