Many countries are increasing their use of natural gas, wind and other forms of ____.
#5136
A
energy
B
source
C
power
D
material
推荐题目
Ancient Greeks were responsible for many of the _______ in science and other fields.
#5601
A
advances
B
progress
C
development
D
civilization
The primary school is in poor ______, which worries many parents and teachers.
#6702
A
state
B
situation
C
condition
D
position
We are good friends though he is ten years ________ to me.
#5550
A
older
B
elder
C
senior
D
more senior
It is well known to us all that in China pigeons stand for peace. However, in India the wheel in its national flag is also a _______of peace.
#7392
A
example
B
sign
C
mark
D
symbol