72．北京有许多名胜古迹。

__________________________________ many places of interest in Beijing

71．这双鞋不行，何不试试另一双?

The pair of shoes doesn’t fit you．_____________________ try another pair?

根据中英文提示。完成句子。

70．同学们都在忙着为考试做准备。

　 All the students_____________________________________ preparing for the exams