by a policeman, the children crossed the street safely.
#95314
A
To lead
B
Lead
C
Leading
D
Led
推荐题目
        to reach them on the phone, we sent an email instead
#97816
A
Fail
B
Failed
C
To fail
D
Having failed
 Coming into the room, I found them _______ at the table, ________ chess.
#90415
A
seated; played
B
seated; playing
C
seating; playing
D
seating; played
The project, ________ in 2009, has expanded the city’s cellphone network to cover one million users.
#96677
A
accomplished
B
being accomplished
C
to be accomplished
D
having accomplished