--According to my grandma, it’s a good idea to eat chicken soup when you have a cold.
--- , scientists agree with her too.
A. Once in a while
B. Believe it or not
C. On the contrary
D. Sooner or later
网友回答
A. Once in a while
(答案→)B. Believe it or not
C. On the contrary
D. Sooner or later
解析：考查词组：A. Once in a while 偶尔B. Believe it or not信不信由你C. On the contrary 正相反D. Sooner or later迟早，句意：--根据奶奶所说，感冒了喝鸡汤是个好主意，--信不信由你，科学家也这么说。选B。