A guide could agree to change dishes if he is informed about it before the dinner time.
A. 对
B. 错
A guide should have meals with the driver because the driver may feel lonely when he has dinner himself.
A. 对
B. 错
Tourists could choose to take snacks in any restaurants they like.
A. 对
B. 错
It is up to members of tour group whether they have dinner together.
A. 对
B. 错