— Mom,Dad is smoking again! — Well, let
问题:
— Mom,Dad is smoking again!
— Well, let him cut it ________ gradually since old habits die hard.[ ]
A. off
B. down
C. up
D. out
— Mom,Dad is smoking again!
— Well, let him cut it ________ gradually since old habits die hard.[ ]
A. off
B. down
C. up
D. out