几道首字母填空题
问题描述：
几道首字母填空题
1.we don't need to give up cars but we need to i-----better,cleaner engines.
2.i visited some relatives r----- in a small village.
3.that would reduce r---- and air pollution.
4.now the banks are o---- of money and governments around the world have had to step in and help them.
答
1.invent 2.recently 3.rubbish 4.out