It is asserted that...有人斷言...
It is believed that... 據(jù)認為....,人們相信....
It is considered that...有人認為...
It is reported that...據(jù)報道...
It is said that...據(jù)說....
It is supposed that...據(jù)推測...
It is told that...據(jù)傳...
It appears that看來似乎...,好像...
It is well known that...眾所周知...
It is estimated that...據(jù)估計...
It was pointed out that...有人指出...
It is generally accepted that...人們通常認為...,一般認為...,大家公認...
It is alleged that...人們斷言...
It is claimed that...有人主張...,人們要求...
It cannot be denied that...不可否認
It has been found that...實踐證明
It is predicted that...據(jù)估計...,據(jù)預測...
It is suggested that...有人建議...
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