In the USA, _______ Thanksgiving Day is a harvest festival. Traditionally, it is _______ time to give thanks for the harvest and express gratitude in general.

A．the; a

B．/; the

C．/; a

D．the; the

根据安德森的研究，最受欢迎的特质是（）。

A.热情

B.幽默

C.真诚

D.善良