–A boy was killed by the tiger in the zoo.–He was believed          into the cage while feeding the tiger without permission.
#102548
A
to fall
B
to be falling
C
to have fallen
D
having fallen
推荐题目
The people _____ the murderer everywhere when he suddenly _______ in the hospital.  
#102316
A
searched for; appeared
B
were searching; was appearing
C
were searching for; was appeared
D
were searching for; appeared
If nothing______, the oceans will turn into fish deserts. 
#99587
A
does
B
had been done
C
will do
D
is done
 I first met Lisa three years ago. She _____ at a shop at the time.
#104141
A
has worked  
B
was working
C
had been worked
D
had worked