①我们各族人民的共同理想②我们的最高理想③当代青年的崇高历史使命④与全面建设小康社会的目标一致的

Look at the tree. It is big and strong. It has a trunk. The trunk is big and brown. It has branches. They are brown too. Its leaves are green and beautiful. We can see some little flowers on the tree. But we can’t see the roots. They are under the ground.

Good books are like wise friends, because _____ support you to walk forward and help  you understand the world.

每个人是社会中的一员，____是个人成长的沃土。