今天刚考完试想知道自己的答案是不是对的，请各位帮忙解答
1. In my opinion, the food at the new Italian store is _____ at best. I don't
understand why it is so hard to make a reservation.
(A)resplendent
(B)resilient
(C)mediocre
(D)bleak
2.Angel wants to _____ her temporary internship into a full-time job.
(A)paramount
(B)falter
(C)dive
(D)parlay
3.The staff's constant criticism of their boss _____ his authority.
(A)imposed
(B)culled
(C)undermined
(D)dubbed
我自己是选C,D,C 里面的单字我都知道意思 不过看不太懂语意

http://www.ldoceonline.com/dictionary/best_3 -> 3 ...http://www.onlinedict.com/ 输入 at best 或是输入 at->找 at besthttp://tinyurl.com/hs5dvps 标题，然后对照第三段"Butgetting a foot ...."最后一句里的"... so that ...."http://tinyurl.com/h49rgmk 标题，然后找 parlay ，互相对照。能的话稍微读这两篇的内容http://www.thesaurus.com/browse/parlay?s=tbet -> maneuver然后由此延伸http://tinyurl.com/j45t5ba-> 1 a .... 也看之后的Collocates方框