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．possible
B．likely
C．probable
D．sure
答案
答案：B
考查形容词用法。固定结构be likely to do sth可能做某事；be sure to do sth一定会做事情；结合句意可知B正确。句意：研究显示如果人们总是长时间坐在电脑前面，人们更容易患背部问题。