问题补充:
. –I hear Alice was badly injured in the accident and sent to hospital.
--, we should go and see her immediately.
A. If so
B. When necessary
C. On condition that
D. Believe it or not
答案:
(答案→)A. If so
B. When necessary
C. On condition that
D. Believe it or not
解析:可联系答.案.网客服索取。