题目内容：

八年级英语——词形转换
I'm very sorry______(hear) the bad news.
Everything___________(begin) to grow in spring.
I'll stay at home and do some __________(clean).
We ________ (have) a good time in the park two days ago.
You must ________ (look) after your thing.

优质解答

1、hearing现在分词称当原因状语；
2、begins陈述一般规律用一般现在；
3、cleaning固定搭配do some Ving;
4、had从两天前可以看出时间；
5、look前面有情态动词.