【推荐1】I ________ (怀疑) if my younger brother had told the truth last night.

【推荐2】You don’t need to ________ (怀疑) her words. She is always an honest person.

【推荐3】Even though many people now know about tea culture, the Chinese are without d_______ the ones who best understand the nature of tea.

【推荐1】—What do you think of the opening ceremony of Beijing Winter Olympics?
—Creative. And the 24 solar terms (24节气) at the ceremony _________. (毫无疑问在传播传统的中国文化中起作用) (play)

【推荐2】The movie Hi, Mom has been, ________ doubt, one of the most touching movies we have seen so far.

【推荐3】Pam is ______ one of the cleverest students I’ve taught.