is believed that the betterknown companies spend about 70 per cent of the t
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_____ is believed that the betterknown companies spend about 70 per cent of the total cost of the product itself on packaging!
A.This
B.One
C.That
D.It
试题答案
D
此题考查代词。it 是形式主语,that引导的从句是真正的主语。It is believed that...“人们相信……”。