1·Her mother has fallen ill.
她母亲生病了。
2·Has she fallen ill again?
她又病了吗？
3·My dog has fallen ill.
我的狗生病了。
4·He has fallen ill.
他已经病倒了。
5·He has suddenly fallen ill.
他突然病倒了。
6·He has suddenly fallen ill.
他忽然病倒了。
7·She might have fallen ill.
她或许突然得病。
8·It can't be Mary. She has fallen ill.
这个人不可能是玛丽，她生病了。
9·That he had fallen ill made us worried.
他病倒了使我们很担心。
10·I guess her mother might have fallen ill.
我猜她妈妈可能生病了。