根据汉语完成句子。
1．自行车运动不如跳水运动有趣。
Cycling is __________ interesting __________ diving.
2．她是这些孩子中年龄最大的。
She is the __________ __________ these children.
3．我们不能只想着自己而不关心他人。
We can't only __________ __________ ourselves and never __________ __________ others.
4．中国在世界的政治、经济舞台上正扮演着越来越重要的角色。
Now China __________ __________ __________ __________ __________ __________ on the world's political and economic stage.
1.less than2.oldest of 3.think of; care about
4.is playing more and more roles
___________