阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。
Essential first job tips for graduates
Graduates may be anxious as they enter the workplace. And most bosses won't teach you how to be a good employee. Follow these four essential new job tips for graduates.
Speak clearly. Many graduates mumble (嘟哝) or talk too quickly. It is common that people have to ask them to repeat themselves. Perhaps it is because they often speak to their peers who have super sharp hearing. But the customers you encounter in your new job may not. Good verbal communication skills are essential for most jobs. Practice speaking slowly and clearly.
Listen carefully. This is an important skill no matter what career you hope to have. When someone is talking, make eye contact to indicate that you are listening. And then ask appropriate questions to make sure you understand the directions or questions.
Don't interrupt unless it's urgent. When a co-worker or boss is talking to a customer, don't cut in unless what you have to share absolutely can't wait. Use good judgment to determine the urgency of the situation. Say "excuse me", and then wait to be acknowledged before you start speaking.
Some employers have a pretty strict dress code, which takes the decision about what to wear to work. This rule could be quite helpful. Other bosses just tell their workers to "dress appropriately". Remember, though casual clothing is acceptable to some jobs, make sure your clothes are clean, without rips (裂口) or designs that may upset others.
A. Dress formally.
B. Dress in a proper way.
C. If it is urgent, interrupt without judgement.
D. Avoid shouting, but speak loudly enough to be heard.
E. That is something new workers must learn on their own.
F. When it is necessary to interrupt a conversation, do so carefully.
G. It requires being able to pay attention to the information another person is conveying.
