第1题:
第2题:
第3题:
did;being demolished
did;demolish
is;being demolished
is;demolished
第4题:
about
of
for
on
第5题:
tumbled
dispersed
collapsed
dripped
第6题:
attention
watch
sight
notice
第7题:
第8题:
cultural
literate
native
responsible
第9题:
expanded
expands
expand
expanding
第10题:
第11题:
with
in
to
on
第12题:
第13题:
can buy
will buy
is bought
can be bought
第14题:
No, thanks.
No, I wouldn't
Yes, I want.
Yes, I like.
第15题:
a many difference
much difference
many difference
much a difference
第16题:
How to fight air pollution in big cities.
How to avoid air pollution in big cities.
How to breathe fresh air in big cities.
How serious air pollution is in big cities.
第17题:
on
in
with
at
第18题:
in
on
at
with
第19题:
get used to
get over
get to
get on with
第20题:
it was snowing hard
hard it was snowing
how it was snowing hard
how hard it was snowing
第21题:
It's well.
It doesn't matter.
By all means.
I have no idea.
第22题:
appeal
failure
objection
support
第23题:
hear
being heard
be heard
hearing
第24题:
if only
now that
so that
even if