问题补充：
many patients are so poor that they can afford to travel to hospital.(同义句） many patients are( ) poor ( ) ( ) travel to hospital.many patients ( )rich ( ) ( ) ( ) to travel to hospital.
答案：
many patients ( too ) poor ( to ) ( afford ) travel to hospital.（这个travel前面是不是少打了个to?）
many patients ( not )rich ( enough) ( to ) ( afford ) to travel to hospital.
======以下答案可供参考======
供参考答案1:
1.too afford to
2.aren‘t that they can’t
供参考答案2:
第二句是不是在patients后面加are啊？
很高兴为你解答！
老师祝你学习进步！
望采纳，多谢你的问题！^_^
