When a relative or a friend suffers an injury, a loss of property, or a bereavement, writing a（ ）is a considerate way of expressing your feeling.
举一反三
- Call your friend when you both_______________.
- When your friend can not come to your party, you may say _______
- When you want to introduce your friend to your classmate, you may say________.
- When should you present your key ideas when writing proposals?
- What can you do when you are writing in the way of stream of consciousness?