Ⅰ.指出下列画线部分在句中所作的成分
1．It is a pity to_waste_so_much_money.________
2．It took them two hours to finish the work.________
3．It is stupid of you to_stand_in_the_hot_sun.________
4．To_save_enough_money_for_the_house is not easy for her.________
5．It is important for you to_give_her_some_help_in_her_work. ________
【答案】1.真正的主语 2.形式主语
3．真正的主语 4.主语 5.真正的主语
