题目内容：

根据句意，在答题卡标有题号的横线上，写出括号内所给单词的适当形式。

1.My grandfather still grows flowers in his           (ninety).

2.Since Alibaba appeared on the market, Jack Ma has become the       (wealth) man in Asia.

3.All the students            (success) in passing the exams at last.

4.More and more           (Europe) come to China for a visit every year.