It is a bad habit to leave the office wi
题型:选择题
问题:
It is a bad habit to leave the office without _____ the lights.[ ]
A. putting out
B. putting on
C. taking off
D. turning off
It is a bad habit to leave the office without _____ the lights.[ ]
A. putting out
B. putting on
C. taking off
D. turning off