---A car knocked Jack down while he was
问题:
---A car knocked Jack down while he was playing on his way home.
---Really? We are told in the street.
A.not playing
B.not play
C.don’t play
D.not to play
---A car knocked Jack down while he was playing on his way home.
---Really? We are told in the street.
A.not playing
B.not play
C.don’t play
D.not to play