It’s hard to imagine_____it would be like living on Mars.
#30629
A
that
B
how
C
where
D
what
推荐题目
He waited ________ the volcano became quiet and he was able to return two days later.
#80251
A
when
B
before
C
as
D
until
Some teenagers turn a deaf ear to their parents’ advice, _____ they know it does good to them.
#31773
A
as though
B
now that
C
even though
D
so that
Cloning plants is straightforward cloning animals is very complicated .
#34234
A
so that
B
although
C
while
D
as if
______environmental damage is done，it takes many years for the ecosystem to recover.
#80690
A
Eyen if
B
If only
C
While
D
Once