----- Nội dung dịch tự động từ ảnh -----
When the man first learns how to make a fire, he began to use fuel for the first
he used was probably wood. As time passed man eventually discovered that substances such as coal
oil (1)
The first fuel
very widely as a source of energy until the end of the 19th century. With a
if coal was
Coal (2)
used instead of wood. Nowadays, many of the huge factories and electricity generating stations
as a result, there have bee
coming of the industrial revolution, it was soon realized that production (3)
to function if there was no coal.
In the last forty or fifty years, however, the use of coal (5)
changes in the coal industry. It (6)
readily available.
There is mote than enough coal in the world for man's needs for the next two hundred years if o
coal if oil and gas were not
that more people (7)
Unfortunately, however, about half of the world's coal (9)
very expensive even if it was possible to use new equipment.
B-would burn
B- did not use
B- had doubled
B- would be unable C-will be unable
B- will decline
B- is believing
B- used
Mining
use of coal (8)
much of it (10)
1.
2.
3.
D- were burnt
D- was not used
D- would double
D- are unable
D- would decline
D- is believed
D- will use
A- are burning
A- nit used
C- have burn
C- not using
C- will double
A- doubles
A- were unable
A- has declined
A-believed
A- would use
4.
5.
C- declines
6.
C- believing
7.
8.
C- use
B- would not increase
D- may not increase
B- may never be used
D- would never be used
A- did not increase
C- does not increase
A- would never use
9.
C- may never use
A- was
C- would be D- has been
10.
B- used to be