战术是进行战斗的原则和方法。( )
A. 对
B. 错
The time for people to think more about showing thanks is (by the end of a year).
A. 对
B. 错
It is now very common for people to use (posts) to thank the volunteers.
A. 对
B. 错
What may give the volunteers a sense of belonging is to hold (potlucks) in the office.
A. 对
B. 错