问题
选择题
If I hadn't stood under the ladder to catch you when you fell, you_______ now. [ ]
A. wouldn't be smiling
B. couldn't have smiled
C. didn't smile
D. won't smile
答案
答案：B
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If I hadn't stood under the ladder to catch you when you fell, you_______ now. [ ]
A. wouldn't be smiling
B. couldn't have smiled
C. didn't smile
D. won't smile
答案：B