is now no doubt global warming is a security threat to us all.A. It; thatB. There; thatC.

发布时间：2020-08-15 01:40:19

    is now no doubt      global warming is a security threat to us all.
A. It; that
B. There; that
C. There; whether
D. It; whether

网友回答

A. It; that
(答案→)B. There; that
C. There; whether
D. It; whether
解析：考查固定表达。There is no doubt that+从句，意为“毫无疑问…..。”。
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