翻译句子

1. His front teeth stick out.

2. The car was stuck in the mud.

3. We've decided to stick to our previous plan.

4. If you want to play an instrument well, you've got to stick at it. 

饭店营销活动的特点主要包括( )。

A．注重服务的有形化表征

B．注重收益管理

C．饭店提供的产品以实物为主

D．注重引导与刺激客人的需求

E．饭店产品属于生活必需品