1. We seem to have been in an unfavorable situation.
This is an indirect way to delivery a bad new. You'd better say it in a calm tone to let others know that the problem is not unsolvable. If you behavior in a hurried and anxious way, your boss and your colleagues will doubt your ability of dealing with crisis.

2. I will tackle with it right now.
Response to your boss calmly and quickly, which will make he or she think you are a efficient and responsible person.

3. Iris's idea is really good.
This shows that you are a person with team-work spirit. Learn to praise and admire others will leave a good impression to both your colleagues and your boss.

4. I can't make it without your help.
There are always tough problems in your work. You should know how to ask someone who is more capable than you for help. Remember, be honest and sincere when say it. You often can learn much from others.

5. Let me think it over and I will response you before three.

You should know how to avoid saying“ I don't know” in front your boss when he ask you something about you work area. But you must make up what you are short of and submit your response on time.

6. Thanks for telling me, and I will think about you suggestion carefully.
Be calm when you face others's criticisms. Let them know that you are not a person who can't stand frustration. Accepting the suggestion by others shows your confidence and politeness.