Studies show that people are more to suffer from back problems if they always si

Studies show that people are more 　 to suffer from back problems if they always sit before computer screens for long hours.

A. likely B. possible C. probable D. sure　

试题答案

A

所填词做表语，主语是人，由more来修饰，意思是：可能，选A。其中四个选项中possible和probable也都“可能的”之意，但他们做表语时主语只能是物，sure在此处意思不恰当。