Studies show that people are more ______

问题选择题

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

答案

答案：A

题目分析：句意：研究表明如果人们总是坐在电脑面前就有可能患背部的疾病。D项sure“一定”，不符合句意，ABC三个单词都有“可能”的意思，但是只有likely适用于：Sb be likely to do这个句型，BC的主语应该是it，所以选A。