4 . 得知你被清华大学录取，我写信祝贺你。
________________, I am writing to congratulate you.

6 . 我们应该尽我们所能来帮助人们意识到环保的重要性。(do what sb can to do)
We should ________ people realize the importance of environmental protection.

7 . 焦虑的父母尽力安抚紧张和哭泣的孩子。
Anxious parents ________ nervous and crying children.

8 . 如果你能提前告知我你是否有空我将感激不尽。
I’d appreciate it if you could let me know ________.

9 . 但我们需要记住，我们在社交媒体上看到的往往不是一个人的全部真相。
But we need to ________ is often not the whole truth about a person.