his homework, my son went downstairs to play basketball. 
#95865
A
Having finished
B
finished
C
to finish
D
finishing
推荐题目
She needs the work ____ before tomorrow.
#98796
A
done
B
be done
C
doing
D
be doing
  If he had helped you, he would have risked ________his job.
#88322
A
to lose
B
losing
C
to be lost
D
being lost
______ the ______ of buying a house, it costs little to rent a house.
#97086
A
Compared to; fee
B
Comparing with; charge
C
Comparing to; fare
D
Compared with; expense