将下列陈述句改成反问句

①生活富裕了，我们也不能铺张浪费。

②我们不能忘记妈妈的爱。

珠江三角洲地区经济发展的特点是（　　）

阅读短文，判断句子正（正确）误（错误）。

    On Sunday morning, Mr. Baker takes Mike and John to a plane. He opens the door of the plane and lets the children in. Soon the plane begins to up. John looks out of the window, “Oh, we're like birds in the sky!” He says. He looks at the houses, but they are like toy houses. Mike looks out of the window, too. He sees some buses. They look like toy buses. The people on the ground look very, very small, too. Then the plane comes down and down, and stops on the ground. Mike and John are very happy.