The illness of her son is so that she cannot go to sleep at night.A. satisfyingB. worryin

问题补充：

The illness of her son is so that she cannot go to sleep at night.

A. satisfying

B. worrying

C. surprising

D. puzzling

答案：

A. satisfying

(答案→)B. worrying

C. surprising

D. puzzling

解析：考查形容词辨析。句意“他儿子的病如此令人担心，以至于她不能入睡。”satisfying “令人满足的”；worrying“令人担忧的”；surprising“令人吃惊的”；puzzling“令人困惑的”。根据句意可知，选B。