6[.单选题]It is requested that all the students __ present at the meeting tomorrow.
A.were
B.are
C.will be
D.be
[答案]D
[解析]在“It is+表示提议、要求、命令等含义的动词过去分词+that分句”这一结构中，从句谓语动词用“动词原形”或“should+动词原形”表示虚拟语气。
7[.单选题]It was clever __ at the answer in two minutes.
A.of him to arrive
B.for him to arrive
C.for his arriving
D.of his arriving
[答案]A
[解析]比is+形容词+of+名词/代词+不定式，of后的名词/代词为不定式的动作发出者。
8[.单选题]It is difficult to distinguish one twin __ the other.
A.to
B.by
C.for
D.from
[答案]D
[解析]distinguish...from...表示“使……区别于”。
9[.单选题]My parents always buy __ my birthday.
A.anything nice to
B.anything nice for
C.something nice to
D.something nice for
[答案]D
[解析]肯定句用something，for表示“为了”。
10[.单选题]To travel from England to Scotland you __ a passport.
A.mustn't have
B.haven't got
C.don't need
D.needn't
[答案]C
[解析]句中need是行为动词，其后接名词做宾语。
11[.单选题]Anyone can get into the club,__ he is a member there.
A.even if
B.unless
C.as that
D.so long as
[答案]D
[解析]even if意为“即使”：unless意为“除非”;so long as意为“只要”。根据题意，选D。
12[.单选题]When he was in his he began to study English.
A.forty
B.forty's
C.forties
D.forty's years old
[答案]C
[解析]在某人几十岁时，用“in one’s+基数词的复数形式”。
13[.单选题]He is()a horse.
A.stronger as
B.as stronger than
C.the strong as
D.stronger than
[答案]D
[解析]比较级形容词前不加定冠词。
14[.单选题]I think he studies very hard,__?
A.does he
B.doesn't he
C.don't I
D.do I
[答案]B
[解析]对含有宾语从句的句子进行反义疑问时，如主语是第一人称I，we，则反义疑问句的动词应随宾语从句的动词形式。
15[.单选题]In __ century,computers will be used more widely.
A.twenty-one
B.the twenty-one
C.twenty-first
D.the twenty-first
[答案]D
[解析]表示多少世纪用序数词，序数词前需加the。
16[.单选题]I shall make the announcement __ the beginning of the meeting.
A.to
B.for
C.at
D.in
[答案]C
[解析]at the beginning of表示“在……开始时”。
17[.单选题]It is a question __ the book will be published this month or next month.
A.if
B.whether
C.that
D.which
[答案]B
[解析]这是主语从旬后置的句子。由于主语从句中有表示选择意义的or，所以不能选that。if不能引导主语从句。
18[.单选题]In no way __ from practice.
A.theory can be separated
B.theory is separated
C.can theory be separated
D.has theory been separated
[答案]C
[解析]in no way是表示否定意义的状语，当它放在句首时句子倒装。
19[.单选题]He was made __ his working because of his poor health.
A.to give up
B.given up
C.give up
D.giving up
[答案]A
[解析]使役动词make用在被动句中其后的不定式不省略to。
20[.单选题]It is __ for me to carry.
A.a too heavy bag
B.too a heavy bag
C.too heavy a bag
D.too heavy bag
[答案]C
[解析]本句中含有结构too...to...
