I suddenly found myself ____ down the street when I found a crowd of people gathered in the street corner. 
#97030
A
run
B
running
C
runs
D
ran
推荐题目
The joke told by Tom made us______, so our maths teacher couldn’t make himself______.
#98882
A
laugh; hearing
B
laugh; heard
C
laughing; hear
D
laughed; to be heard
     by a greater demand of vegetables, farmers have built more green houses.
#96670
A
Driven
B
Being driven
C
To drive
D
Having driven
__________at the gate of the theater, Susan found the ticket for the play was left at home.
#90361
A
To arrive
B
On arriving
C
As arriving
D
While arrived
    how to work out the difficult physics problem ,he asked the teacher for help .
#89838
A
Not to know
B
Not knowing
C
Knowing not
D
Not known