He seemed _______ the secret.

A

be cast down意思为“沮丧; 灰心”，与语境 the dispointing result of the exam 相吻合。cast off摆脱；放弃；cast off把……赶走；驱逐；cast off把……冲上岸。

答案错的吧.
选A

seem是系动词
用法有两种
it seems that+从句
sb.seems to do sth.

unfriendly ,因为后半句是but,转折,肯定是现实和原先自己估计的不一样,所以用 不友好的

第一时间为你提供正确答案：
A

不对
seem可用作连系动词或不及物动词 有这么一句型：、“主语+ seem +（to be ）+表语”,表语多为名词或形容词,有时是其他的词或短语,以说明主语的特征或状态.
而happily是副词 不能做表语
所以应该是He seemed very happy.

seem (to be) + adj.
看起来...其中的to be 可以省略.
所以原句可以是 seemed to be sad,也可以直接是 seemed sad

seem +形容词

to be reading
Whenever you feel lonely,I'll come to keep you company.
我的没错的.

首先说下seem的用法:
1.seem+形容词
　　Everything seems easy.一切似乎很容易.
　　2.seem+名词
　　He seemed an honest man.他看上去像是个老实人.
　　This seemed to us an ideal plan.我们感到这是个完美的计划.
　　3.seem+不定式
　　The maths problem seems to be very difficult to work out.这道数学题似乎很难解决.
　　I seem to have caught a cold.我好像是感冒了.
　　4.seem+过去分词
　　Our teacher seemed stopped by the question.我们的老师似乎是被那个问题难住了.
　　His story seemed revealed.他的谎言似乎已被揭露.
　　5.seem+doing
　　No one seemed thinking that way.似乎没人那样想.
　　She seemed lacking in enthusiasm when we were talking about that film.我们谈论那部电影时,她看来好像没多大热情.
　　6.seem+like+n./ V-ing,意思是"看起来像……"
　　It seems like years since I last saw you.自从我上次见到你以后,好像是过了好几年.
　　Those cards seemed like so many little flags dotted about the schoolroom.那些卡片好像许多面小旗点缀着教室.
　　7.There seems to be...,意为"似乎有；好像有……"
　　There seems to be no work for you to do now.看来现在没有工作需要你做了.
　　8.It seems/seemed +that从句
　　It seems that he is lying.看来他在撒谎.
　　It seemed that no one knew what happened.看来没有人知道发生了什么事.
　　9.It seems/seemed + as if从句
　　It seems as if he were in a dream.看来他像是在做梦.
　　It seemed as if the good man were trying to teach us all he knew at this last lesson.这个好心人仿佛要在最后这一堂课上把他的全部知识教给我们.
在这里,relaxed
KK:[]
DJ:[]
a.
1.松懈的;放松的
2.随意的;悠闲的
当然用 seem+形容词,选择C是正确的,relax+ed 在这里是形容词.
　注意：1.seem后跟不定式（短语）时,要注意不定式所表示动作发生的时间,以此来确定不定式的时态.
　　2.seem后不定式的否定式习惯上用 don’t 来代替,（放在seem 前）,如：
　　You don’t seem to be quite yourself today ( =You seem not (to be) quite yourself today )
a)I seemed to hear a voice in the distance .
b)Your advice seems to be doing me a favor .
　　c)I seem to have caught a cold .

D

A
seem to do 是固定搭配.
翻译：他看起来似乎知道 发生什么事了.

1.chain 一系列
2.
3.carriage
4.medical
5 astonishing 惊人的成绩
6.especially
7.
8.honored
9.contents
10.power
11.jest/joke 别就我的工作开玩笑
12.moderately.他们生活有节制
13.identification card
14.promise
15.be under the impression that 记得,认为
16.square meters 平方米
curiosity,universe,_____
何止是初中水平呢?现在初中英语水平不简单呀!

seem (not) to do sth.
seem to have (not) done sth.
答案：to forget
to have forgotten
用后者——过去完成时更好.

seem后接形容词,修饰主语he；从句中的谓语tell与he之间是被动关系,因此用被动语态.由于主句是一般过去时,从句因此也要用一般过去时.

unfriendly

D
他看上去已经知道那个秘密了