根据所给的单词的适当形式填空。
Gratitude(感谢) doesn’t always come naturally. Unluckily, most children and many ____ like only the thing given rather than the feelings shown in it. (grown-up)

           Day is coming. I will buy some            for Miss Wu.

He lost his iPad last ____ (星期五). He was very sad.

在爱因斯坦完成学业之后，他继续在瑞士学习物理。
After Einstein ____ school, he went on to study ____ in Switzerland.

—Lots of trees and f____ are planted in Zhengzhou every year.
—You’re right. That makes our city more and more beautiful.

An unhappy home ____（环境）can affect a child’s behavior.

用括号中所给单词的适当形式填空。
They stare in ____ at the black smoke rising above the burning building. (believe)

When we see dark c____ in the sky, we know that rain may come soon.

Mr. King likes music. He sometimes goes to the c____.

C____is the most important traditional holiday in western countries.