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．won’t smile
D．didn’t smile
答案
答案：A
考查混合虚拟。If I hadn’t stood under the ladder to catch you when you fell和过去事实相反，用过去完成时；you _________ now.和现在事实相反，用wouldn’t+现在时态。选A。