It’s dangerous______a tree．
#58020
A
climbing，
B
going up
C
to climb
D
clim
推荐题目
---Did you return Helen’s call? ---I didn’t need to _________I’ll see her tomorrow．
#57308
A
though
B
unless
C
when
D
because
The girl handed everything _____ she had picked up in the street to the police.
#57601
A
which
B
in which
C
that
D
all
Earth is becoming more and more polluted. ______, people will move to Mars one day.
#55145
A
In order to
B
So that
C
As a result
D
Because of
Stephen Hawking can’t walk or even speak，_____he has become very successful.
#58267
A
but
B
and
C
or
D
then
_____ they are very tired, they feel happy because they’ve finally finished their project.
#58350
A
So
B
Although
C
If
D
But