第一句=
She showed the visitors around the museum.
The construction of the museum had taken more than three years.

第二句是什么情况啊 求大神解释啊 在线跪求了

a too-familiar way with（which offers) hiring managers a major problem.
把with变成括号里的是不是好理解一点

Job candidates speak in a too-familiar way with hiring managers a major problem,according to 20% of survey respondents.
应聘者往往会以一种过于亲昵的语气与招聘经理交谈——根据20%受访者的反馈，这是一个普遍问题
Job candidates 应聘者
speak 交谈
(in a too-familiar way ) 以一种过于亲昵的语气
(with hiring managers ) 与招聘经理
a major problem,
according to 20% of survey respondents.（根据20%受访者的反馈 ）
【这是原句吧？我也觉得a major problem这里怪怪的，我感觉a major problem前面想加个破折号