A group of firefighters were called in to rescue the woman ______ in a dry well.
#95811
A
who trapped
B
trapping
C
trapped
D
to be trapped
推荐题目
________ many times, he finally understood it.
#94974
A
Told
B
Telling
C
Having told
D
Been told
Do you know we have much difficulty ____ the work on time.. 
#97766
A
on finishing
B
finishing
C
to finish
D
at finishing