Complete the sentences with the given words in their proper forms.
1. The nursery is bright and _________ with plenty of toys. ( cheerfully)
2. The retired people usually take up a hobby such as raising flowers or birds to relieve the _________ of
retirement. (boring)
3. They have to have a basic ___________ of computer in order to use the advanced technology. (understand)
4. The specialist watched the _________ of the snake for a long time. (move)
5. The last decade has a witnessed (见证) a serious rise in the levels of racism (种族歧视) and __________ to
Black and ethnic groups. (种族群体) (hostile)
