如题所述
造句:
1、It is hard to solve this problem.这个问题很难解决。
2、It is hard to do the housework.做家务很难。
3、It is hard to make a model.很难做模型。
4、It is hard to answer this question.这个问题很难回答。
5、It is late to go to school now.现在上学太晚了。