1、第一句改一下位置,你就更好理解
Experts suggest that sutdents (given) more attention in class might feel valued and learn more quicky.
说明 (given) more attention in class 是修饰students的,被给予更多关注的学生,是被动的,所以用过去分词.
2、 Mary and Lily are good friends, and they love to sit on the bank,(talking) to each other for hours.
用动名词表示主动和进行的双重意味,她们坐在岸边,不停地交谈好几个小时.
3、The man (hesitated) for a moment, wondering whether to accept the terms , and then nodded his head firmly.
这里你应该是搞错了,hesitate的过去式,表示过去的动作,不是非谓语的用法.wondering才是,看这个动作跟主语的关系,是the man在想,所以用主动的,现在分词表示主动.
4、（Viewed) from the top of the mountain, the village appears rather beautiful
站在山顶看村庄,后半句主语是the village ,所以应该是被看,用过去分词.
5、你题目没完整,不过我也猜得到,应该是个对话,第二个人说“他不应该喝那么多酒的”
选D