Though it is a          job, he  still devotes much time and energy to it.

poor-paying

poorly-paying

poorly-paid

poor-paid

考查构词法。本题中考查了复合形容词的构词法，“使用副词+过去分词” 构成新的形容词，如“newly-discovered”最新发现的；本句中“poorly-paid报酬极少的”。句意：尽管这是一份报酬极少的工作，但他仍然花了很多时间和精力做它。故选C项。

You must have had some moments when you were disappointed. If so, how           you deal with them?

will

did

can

do

考查动词的时态和语态。句意：你一定有过失望的时候。如果有，你是怎么处理的？must have done 表示对过去的事情的推测。可知时态为一般过去时。在特殊疑问句中助动词应用did。故选B项。

My mom suggest that we           eat out for a change this weekend.

should

might

could

would

考查虚拟语气。句意：我妈妈建议我们这周末出去吃饭换换口味。suggest作“建议”时，后面的宾语从句要用虚拟语气（should）+动词原形。故选A项。

When Huawei P20 came out,         people couldn't wait to buy one in our town.

thousand

thousands

thousand of

thousands of

考查数词的用法。句意：当华为P20上市时，成千上万的人迫不及待的想在我们镇上买一台。thousnad意思是“千”，其前有具体数词修饰时，用其单数形式；当其前没有具体数词修饰时，用其复数形式，且与of 连用，thousands of“成千上万的”，这里没有具体数词修饰。故选D项。

It was last night ________ I saw the comet.

the time

when

that

which

强调句的结构是：It＋be＋强调部分＋that(who)＋主谓句。强调句的连词只有两个，that和who。当强调的部分是人，且为句子的主语时，才用“who”，其余用that。因此选C。

never I have read

never have I read

ever I have read

ever have I read

Writing out all the invitations by hand was more time-consuing than we             .

will except

are  excepting

except

had excepted

考查时态。句意：手工写下所有的邀请函要比我们预料的花去更多的时间。根据句意可知我们预料是在实际上写之前发生的，而本句中实际写花去的时间使用了过去时was，所以expect用过去完成时。故D项正确。