题目内容：

请根据下列句子及汉语注释，写出空缺处单词的正确形式，每空限一词。

1.It’s very             (困难的) to play basketball well.

2.Jack isn’t tidy. His books are               (到处).

3.I always eat            (蔬菜) for dinner.

4.There are           (十二) apples on the desk.

5.Li Lei is often             (迟到的) for school.