_______ in thought, I didn’t notice what was happing.
#18826
A
Having buried
B
Burying
C
Buried
D
To be buried
推荐题目
That couldn’t be better means____.
#18510
A
That wasn’t good
B
That’s exellent news
C
That could be worse
D
Well done
A good diet and some moderate exercise are ____ to good health. 
#18063
A
adventurous
B
approximate
C
fundamental
D
balanced