Many countries are increasing their use of natural gas, wind and other forms of ______.
#5163
A
energy
B
power
C
force
D
strength
推荐题目
The English language____ the rules and____ each group of people brought to Britain with them.
#5308
A
consists of; vocabulary
B
consists in; vocabulary
C
consists of; vocabularies
D
consists in; vocabularies
Having lost all their _____ in a big fire, the Blacks had to depend on their friends and relatives for a living.
#5955
A
galleries
B
reputations
C
signatures
D
possessions
My strongest __________ is the long race and came out first in the sports meet held last week.
#6492
A
event
B
incident
C
thing
D
item
No one has yet succeeded in explaining the ___ of how life began.
#6736
A
cause
B
problem
C
reason
D
puzzle