问题补充:
---------I hear Johnson was badly injured in the accident.
---------- let’s go and see him.
A. What’s more
B. If so
C. Where possible
D. When necessary
答案:
A. What’s more
(答案→)B. If so
C. Where possible
D. When necessary
解析:if so 为 if it is so 之略,意为“如果那样的话”。