my father __a lot.He has given up smoking now.a used to smoking b used to smoke c is used to smokD is used to smoking

问题描述:

my father __a lot.He has given up smoking now.a used to smoking b used to smoke c is used to smok
D is used to smoking

选B used to do表过去常常干……

B过去常常吸烟

B
used to do sth过去习惯做某事