[单项选择]The output of our factory is now twice,（）it was three years ago.
A. what
B. that
C. as
D. which

[单项选择]The output of our factory is now twice（）it was three years ago.
A. what
B. that
C. as
D. which

[单项选择]The output of our factory is now three times（）it was three years ago.
A. what
B. that
C. as
D. which

[单项选择]I let my children make their own decisions. Now they are older; I wouldn't ______ to interfere.
A. assume
B. consume
C. resume
D. presume

[单项选择]The workers ______ a library for our university this month.
A) are building C) built
B) build D) had built

[单项选择]You can just see them from where you stand now; they are frustratingly ______ to the public.
A. isolated
B. faded
C. unattached
D. inaccessible

[单项选择]Now I must work twice as hard to catch up with others（）
A. 我现在必须花两倍的时间，为的是赶上别人。
B. 我现在必须加倍努力，与别人保持同步。
C. 我面对双重困难，依然不落后他人。
D. 我现在必须加倍努力才能超过别人。

[单项选择]My income is now twice as much as I used to earn two years ago.
A. 我现在的收入是两年前的两倍。
B. 我现在的收入比两年前多两倍。
C. 我现在的收入是我习惯收入的两倍。
D. 我现在的收入比习惯收入多了两倍。

[单项选择]______our classroom twice a week is necessary.


A. Cleaned
B. Clean
C. To clean

[单项选择]

Passage One
So great is our passion for doing things for ourselves, that we are becoming increasingly less dependent on specialized labor. No one can plead ignorance of a subject any longer, for there are countless do-it-yourself publications. Armed with the fight tools and materials, newly-weds gaily embark on the task of decorating their own homes. Men of all ages spend fours of their leisure time installing their own fireplaces, laying-out their own gardens; building garages and making furniture. Some really keen enthusiasts go so far as to build their own record players and radio transmitters. Shops cater for the do-it-yourself craze not only by running special advisory services for novices, but by offering consumers bits and pieces which they can assemble at home. Such things provide an excellent outlet for pent-up creative energy, but unfortunately not all of us are born handyman.
Wives tend to believe that their husbands are infinitely resourceful an
A. the mower got worse
B. there ' s some effect
C. the mower didn' t work at all
D. the mower was as good as new