_____ in thought completely, he didn’t even know what was going on. 
#98944
A
Losing
B
Lost
C
Having lost
D
Having been lost
推荐题目
_________ after a long walk, Kate called and said she couldn't come to the party. 
#90051
A
Worn out
B
Having worn out
C
To be worn out
D
To wear out
What great trouble we had ____ where his house was.
#96394
A
in finding
B
to find
C
find
D
found
Every minute is made full use of _________ our lessons before the exam.
#90442
A
studying
B
studied
C
to study
D
being studied
The music, ____________ pleasant, was soon well received when it was taken to the stage.
#89568
A
sounded
B
being sounded
C
sounding
D
having sounded