语法求解答：The key question is how we should solve the problem.为什

the key to solve the problem is to _____ trees We really don't know how we should solve the problem 改为同义句 W what are the cause of social problem and how should we solve What we should do there is the first problem to solve 变成一个不定 We should solve the problem with scientific methods.翻译 we should solve the problem ( ) a good way I don't know how we should solve the problem.这how后面的是宾语从句 The question is very hard.We can't solve it. the problem is ------we should do-----him The question is that we should make it known __everybody how The problem is ___ to solve. 单选We must figure out how to solve the problem as soon as pos