Choose the best answer (A, B, C or D)?

VI. Choose the best answer (A, B, C or D).
1.
Alternative sources of energy are ___________ and safe.
A.
enough
B.
not enough
C.
short
D.
abundant
2.
Nuclear energy can provide enough electricity for the world’s needs, but it is very ___________.
A.
risk
B.
risky
C.
endanger
D.
endangered
3.
We should try to reduce energy ___________ as much as possible.
A.
production
B.
producers
C.
consumption
D.
consumers
4.
We are looking for cheap, clean, ___________ sources of energy.
A.
polluting
B.
harmful
C.
expensive
D.
effective
5.
Solar energy is ___________ and it can be replaced easily.
A.
new
B.
renew
C.
renewable
D.
non-renewable
6.
For many people living in rural areas, biogas is a cheap energy ___________ available.
A.
method
B.
production
C.
supply
D.
consumption
7.
People living in the slums never get good healthcare, ___________?
A.
do they
B.
don’t they
C.
are they
D.
aren’t they
8.
Everyone is ready for the game, ___________?
A.
is it
B.
isn’t he?
C.
aren’t they
D.
is there
9.
People move to big cities for a better ___________.
A.
standard of living
C.
standard life
B.
standard living
D.
life of standard
10.
Slidewalks are ___________ to moving walkways in airport.
A.
familiar
B.
similar
C.
different
D.
same
11.
Rio de Janeiro is very cultural ___________ city.
A.
diverse
B.
diversity
C.
different
D.
same
12.
Which is the best ___________ of transport for the future?
A.
mean
B.
means
C.
traffic
D.
ways
13.
Overcrowded places have a lot of problems, ___________?
A.
don’t they
B.
does it
C.
doesn’t it
D.
have they
14.
The schoolyard is very small, so there isn’t enough __________ for students to play in.
A.
rooms
B.
land
C.
space
D.
ground
15.
I think in the future cities will be more crowded and the traffic will get ___________.
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A.
good
B.
well
C.
worse
D.
worst
16.
When ___________ people live in a small place, life can be very difficult.
A.
a few
B.
few
C.
too much
D.
too many
17.
Do you think it will be a (n) ___________ , green way to travel?
A.
convenient
B.
polluted
C.
polluting
D.
inconvenience
18.
Children in the slums have more diseases than _________ in wealthy areas.
A.
them
B.
that
C.
those
D.
ø
19.
Diseases ___________ more quickly in overcrowded areas.
A.
move
B.
travel
C.
spread
D.
come
20.
In Manila, over 30% of the population lives in ___________.
A.
crops
B.
poverty
C.
shortage
D.
schooling