将下列陈述句改成反问句

①你不能这样做。

②别人能办到的事，我们也能办到。

    It is March 12th. It's Tree Planting Day. There are many people on the hills. They're planting trees. People plant many trees today. Plants are important to us. They can make food from the air, water and sunlight. But animals and people can't do so. Animals and people can get food from plants. Without plants, life will not go on, Plants make the air clean. They can keep water from flowing away(流失). They can stop wind from blowing up sand and earth. But in some places people are cutting down too many trees. This brings about floods and sandstorm. Now more and more people know that plants are important. They will plant more trees and grow more plants. They will try to protect the trees.

对大城市功能区中CBD（中心商务区）描述正确的是(   )
①．应布置在居住区中心，靠近工业区  ②．应布置在多种运输方式衔接地带
③．应布置在城市中心，靠近居住区    ④．区内金融、邮电等服务机构集中

依次填入下面横线处的词语，最恰当的一组是(　　)
“九一八”事变之后，为避劫难，国民政府决定“国宝”南迁。一批有爱国之心的文物工作者承接了这项________的文物大迁徙工程。1939年2月，他们将部分“国宝”________于贵州安顺严华洞，虽然贵州曾遭敌机轰炸，所幸文物安然无恙。一位当事人说：“事后回想，心有余悸。________，在万里辗转中，我们一行人的脊梁________愈挺愈直了！”