It isn’t quite ___ whether the Tibetan antelope is still being hunted.
#18664
A
certain
B
sure
C
safe
D
careful
推荐题目
Once harm is _______ to the eco-system, all species will ________, including man himself.
#19350
A
made; be in danger
B
done; be dangerous
C
caused; be endangered
D
done; be in danger
Mary is always ready to do some __ work at the local geracomium（敬老院）in her spare time.
#19269
A
responsible
B
exhausting
C
voluntary
D
professional
My friend likes singing and talking with others. But I often stay at home to watch TV. So my friend is than me.
#19196
A
seriouser
B
more serious
C
calmer
D
more outgoing
---I don’t think Lily can sing _______ Lucy.---I disagree. I think Lily can sing ______ Lucy.
#17602
A
as better as; as well as
B
as well as; worse than
C
so good as; better than
D
as well as; better than