Paleontologists believe that fragments of a primate jawbone unearthed in Burma and estimated as 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-135
标记
正确的用户笔记
碗啊婉 2016-02-17 11:12:51
明显错误—主谓不一致—provide as 不对
胖哒鱼 2016-06-28 10:22:25
Estimate的用法一般是estimate to be +年代，时间。除非说明在哪里estimate的时候，后面estimate+at+地点，否则一般不接at
Missboli 2015-08-30 12:02:53
provides和fragments单复数不一致 what was可以省略（但留着语法也没什么错） estimate不应该和as连用
mszzzz 2016-04-24 02:53:42
"Estimated as" is incorrect and "provides" does not match the plural subject "fragments".
Maggie有颗少女心 2016-04-03 15:45:28
estimate如果要表示年龄要用to be，如果要表示地点的话采用at
yjylain 2015-12-27 17:11:57
estimate跟年龄to be estimate 跟地点at fragments 搭复数谓语
Heyiii 2015-09-10 15:24:22
主语是paleontologists，谓语动词用provide
moneysharon 2015-08-04 01:32:06
[我]as後加特定時間or地點[正解]estimate如果要表示年龄要用to be，如果要表示地点的话采用at，同时主语是fragments所以要用复数的谓语动词
hetatomato 2015-04-25 19:12:31
estimate如果要表示年龄要用to be，如果要表示地点的话采用at，同时主语是fragments所以要用复数的谓语动词
xmhlf 2015-03-20 20:10:32
fragments。。。provides
