问题补充：
---- According to my grandma, it is a good idea to eat chicken soup when you have a cold.
---- , scientists agree with her.
A. Sooner or later
B. As usual
C. Right away
D. Believe it or not
答案：
A. Sooner or later
B. As usual
C. Right away
(答案→)D. Believe it or not
解析：考查交际用语。A迟早；B和往常一样；C立刻，马上；D信不信由你。句意：—在我奶奶看来，感冒时，喝鸡汤是很好的。—信不信由你。科学家也同意她的意见。根据句意说明D正确。
