题目内容：

根据句意和汉语注释，在标有题号的横线上写出单词的正确形式。

1.Xu Song, a 27-year –old young man , is_____________(认为) as a talented singer .

2.We are having a party to celebrate Betty’ s               （二十）birthday.

3.—Dad, perhaps you can buy an iPhone.

— What bad __________ (建议)it is! You know I only support Chinese products.

4.— Do you know the Chang’e -3 moon rover（登月车）Yutu landed on the moon_____________（成功）?

—Of course ! We are really proud of that!