Leading-in
1.Don’t worry about me, I can take good care of myself. 别为我担心,我会照顾好自己的。
2.The United States will do whatever it can to help Greece. 美国将尽一切所能帮助希腊。
3.Should our children be taught to swim at school? 我们的孩子应该在学校学游泳吗?
Pay attention to the usage of the Modal Verbs.