gwd28-20

lichabrend

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sicivi

"There be" is definately wrong here, as it emphasize a status.

yzhao26

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songlovegt

找到原文出处，和E略有出入

http://www.encyclopedia.com/doc/1G2-2536601339.html

    

In the 1820s substantial anthracite coal fields opened in eastern
Pennsylvania, and as canals and eventually railroads reached into the
region, substantial supplies became available to the nation’s burgeoning mills, forges, factories, and railways.

    

比较E

    

Q20:

    

In the 1820’s, anthracite coalfields opened in eastern Pennsylvania, and as canals and eventually railroads reached into the region, substantial supplies of coal were exported to the nation’s growing mills, forges, factories, and railways.

songlovegt

此外supply不是供应商的意思，

(Longman)
supply / səˈplaɪ /
plural supplies
1
▶AMOUNT AVAILABLE◀
[countable]an amount of something that is available to be used
supply of
I've only got a week's supply of tablets left.
plentiful/abundant/adequate etc supply
There was a plentiful supply of cheap labour.
The nation's fuel supplies will not last forever.
To protect the food supply , the government ordered the slaughter of affected cattle.
ￚsee also money supply
2
▶NECESSARY THINGS◀
supplies[plural]food, clothes, and things necessary for daily life or for a particular purpose, especially for a group of people over a period of time
Supplies were brought in by air.
vital/essential/emergency supplies
trucks loaded with emergency supplies
medical/school/cleaning etc supplies
    
foreign aid used to buy medical supplies
3
gas/electricity/water etc supply
a system that is used to supply gas etc
the public water supply
If you fail to pay your bill, you run the risk of having your electricity supply cut off (=stopped) .
4
▶ACT OF SUPPLYING◀
[uncountable] when you supply something
supply of/to
The military government is trying to stop the supply of guns to the rebels.
5
supply ship/convoy/route etc
a ship etc used for bringing or storing supplies


A 还有一个错误，强调的中心不对
In the 1820’s, anthracite coalfields opened in eastern Pennsylvania, and when canals and eventually railroads reached into the region, there were substantial supplies of coal that was exported to the nation’s growing mills, forges, factories, and railways.

强调两个中心
anthracite coalfields opened in eastern Pennsylvania, and there were substantial supplies of coal
一个是开了矿，一个是有必需品，平行不了吧。

JamesYi

Supply没啥问题啊，有时候就用来指代物资什么的。

而且E也更对称啊 In 1820, A opened, and （as ######## 时间状语不用管）,B were exported.

There be 和前面没对称．

songlovegt

对呀，我支持E

xiaoniuren

up

jbc88

D怎么不对？

dawnssing

为什么D不对····