up
at
for
down
第1题:
hasn’t he
isn’t it
isn’t he
hasn’t
第2题:
less
more
least
most
第3题:
be
be taken place
change
happen
第4题:
precautions
protections
provisions
preventions
第5题:
in front of
of
with
for
第6题:
was; which
was; that
was; whom
is; that
第7题:
in
beside
among
behind
第8题:
precise
exact
accurate
correct
第9题:
children
parent
parents
people
第10题:
healthy
available
profitable
beneficial
第11题:
characteristics
differences
features
contradictions
第12题:
Because nothing remains on land except floods.
Because there are no longer trees to keep the rain and protect the top-soil.
Because too much rain sinks in and washes away the top-soil.
Because roots of the trees break up the soil.
第13题:
thoughtful
grateful
marvelous
considerable
第14题:
real
rear
front
hind
第15题:
presentation
display
performance
publication
第16题:
a play written by Shakespeare
a play recommended by Shakespeare
a play appreciated by Shakespeare
a play people have been complaining about
第17题:
long it takes however
it takes however long
long however it takes
however long it takes
第18题:
Whoever
However
Whatever
Whenever
第19题:
mistake
destination
intelligence
purpose
第20题:
remember
use
desert
review
第21题:
will finish
has finished
finish
would finish
第22题:
needn’t have eaten
couldn’t have eaten
mustn’t have eaten
shouldn’t have eaten
第23题:
destroy
disturb
mistake
misuse
第24题:
warms
warmed
warming
to warm