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

题目：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

喵查答案：A

考查形容词词义辨析。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。