31. If I under the ladder to catch you when you fell you now.A. hadn’t stood ; wouldn’t

问题补充：

31. If I under the ladder to catch you when you fell, you now.

A. hadn’t stood ; wouldn’t be smiling

B. hadn’t stood , couldn’t have smiled

C. didn’t stand, won’t be smiling

D. didn’t stand, couldn’t be smiling

答案：

(答案→)A. hadn’t stood ; wouldn’t be smiling

B. hadn’t stood , couldn’t have smiled

C. didn’t stand, won’t be smiling

D. didn’t stand, couldn’t be smiling

解析：可联系答.案.网客服索取。