1.every不能做代词,只能做形容词,所以当它用在介词of前面的时候,应该是every+名词+of...
跟它意思相近的“each”就可以做代词,所以这里应该用each.dinosaur应该也是用复数的,这里可能有两处错误.
2.by+时间,=no later than 不迟于…….不一定要用完成时的.
比如说：Be here by four o'clock.四点钟之前到这儿.
当然在那个句子里,我们肯定还是习惯用完成时态的.
3.chemical是形容词,前面几个并列的单词都是名词,所以改成chemistries
1.At present,about 300 (different) varieties (of dinosaur) have been identified from (bones found) on (every) of the con
1.At present,about 300 (different) varieties (of dinosaur) have been identified from (bones found) on (every) of the continents.
错误的是D,every.为什么?dinosaur不应该变成dinosaurs吗?
2.By 1996,the US population (exceeded) 261 million,with a median (age of) thirty-four,(making) it one of the oldest national (population) on earth.
错误的是D,exceeded 不用改成had exceeded吗?
3.Missouri is a (heavily) industrialized state (whose) (leading) products are transportation equipment,processed food,and (chemical).
为什么?
错误的是D,every.为什么?dinosaur不应该变成dinosaurs吗?
2.By 1996,the US population (exceeded) 261 million,with a median (age of) thirty-four,(making) it one of the oldest national (population) on earth.
错误的是D,exceeded 不用改成had exceeded吗?
3.Missouri is a (heavily) industrialized state (whose) (leading) products are transportation equipment,processed food,and (chemical).
为什么?
英语人气：635 ℃时间：2020-05-09 21:56:18
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