用所给单词的适当形式填空。

1. I am sure that it’s a ___________ (rain) day tomorrow, do you think so?

2. The day after tomorrow my grandmother is going to have her_______ (ninety) birthday.

3. This is a ___________ (sand) field, so you can’t plant any rice in it.

4. There is something wrong with my head, I am not ____________ (I) today.

5. I have never ________________ (see) the film which is named “Hero”.