单选题
To a worker, ________ from the point of view of society is necessary labor is from his own point of view voluntary play.
题目答案
A
您的答案
答案解析
本题要求填入一个关系代词引导主语从句，并在主语从句中作主语，所以选what。
举一反三
The French maintain a ________ separation of personal and professional life.
题目答案
C
您的答案
答案解析
A.不友好的，怀有敌意的;B严肃的，认真的;C严格的，坚固的，僵硬的;D快的，迅速的
The challenge is not one of expansion. _______, the rapid growth in enrollment over the last 40 years has come to an end.
题目答案
D
您的答案
答案解析
本题考查介词词组的词义辨析。四个词组分别表示“因此”、“务必”、“相比之下”和“相反”之意。
They built a highway _______ the mountains.
题目答案
D
您的答案
答案解析
leadinginto的逻辑主语是highway，它们之间是主动的关系，所以用动名词形式。句意：他们修建了一条通往山里的公路
You’d better leave things ________ if you don ’t know how to deal with them
题目答案
C
您的答案
答案解析
A.离开，离去;B不在里面，出局;C单独的(地);D完结，翻倒，越过
The Roman goddess Venus is identified _______ the Greek goddess Aphrodite.
题目答案
A
您的答案
答案解析
beidentifiedwith：和...有联系，被视为与...等同。
—You were brave enough to raise objections at the meeting.
— Well, now I regret ________ that.
题目答案
D
您的答案
答案解析
regret后所跟动词有todo与doing两种形式，不定式表示“为做某事而遗憾”，doing表示“为做过某事而后悔”。“havingdone”则更强调动作已发生而无法挽回。
Imports will be allowed in proportion _______ exports.
题目答案
A
您的答案
答案解析
inproportionto：按…的比例，与…成正比。
There are many sales this season, during which stores will lower their _______ prices.
题目答案
A
您的答案
答案解析
A正常的、平常的B普通的、一般的C普通的D寻常的、通常的
The traffic was held up for more than thirty minutes, ________ caused me to arrive late.
题目答案
D
您的答案
答案解析
非限制性定语从句引导词的选取。
He bought a house for his children ________
题目答案
B
您的答案
答案解析
本题属于动词不定式复合结构做后置定语。in不可省略。句意：他买了一套房子给孩子们住。