Paleontologists believe that fragments of a primate jawbone unearthed in Burma and estimated that it is 40 to 44 million years old provides evidence of what was a crucial step along the evolutionary path that led to human beings.
语法 Sentence Correction-133
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正确的用户笔记
碗啊婉 2016-02-17 11:10:02
明显错误—语法相关—主谓不一致—provides-provide
BrittanyGAMT仔 2017-07-29 23:48:14
estimate是修饰fragments的定语，本身不是动词，最好不要再接从句，相当啰嗦，it不能指代fragments ; 主语fragments谓语动词应用 复数provide;
Missboli 2015-08-30 12:00:55
fragments和provides单复数不一致 what was 冗余 was应该是现在是 it指代了a primate jawbone 但是正确指代应该是fragments
mszzzz 2016-04-24 02:51:41
"estimated that it is....." is ungrammatical and "provides" should be "provide".
Heyiii 2015-09-10 15:23:53
that it is...语法错误。主语是paleontologists，谓语动词用provide。
moneysharon 2015-08-04 01:27:40
[我]fragments複數[正解]that it is啰嗦 provide后面没有s, provide的主语是 fragments
hetatomato 2015-04-25 19:11:06
that it is啰嗦 provide后面没有s
xmhlf 2015-03-20 20:10:11
fragments。。。provides
奋战 2015-02-10 16:34:21
it 无指代对象 sv agreement
打败lcy 2014-08-24 23:58:52
it is的用法不正确，同时provide的单复数不正确。
