To solve the energy problem这里to表示什么

To solve the energy problem这里to表示什么 help to solve the problem? That should solve the problem这里的solve是动词可以写成That should to s The problem is easy to solve.为什么用to solve The________designed some programs to solve the problem. He____________a good idea to solve the problem. The problem is ___ to solve. He_________a good idea to solve the problem. How to solve energy problems? 初中英语1.How to solve the problem (brings)us more thinking. 这里b 1.How to solve the problem (brings)us more thinking.这里bring为 the key to solve the problem is to _____ trees