but
and
because
though
第1题:
difficulty
happiness
joy
sorrow
第2题:
must have received
must have failed to receive
must receive
must fail to receive
第3题:
anger
fear
happiness
pride
第4题:
However
Therefore
Moreover
Sometimes
第5题:
answer for
answer to
ask for
allow for
第6题:
第7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8题:
when
where
that
how
第9题:
If she came
Would she come
Had she come
Did she come
第10题:
confused
awed
stunned
amazed