[单项选择]If the whole operation ______ beforehand, a great deal of time and money would have been lost.
A. was not planned
B. has not been planned
C. had not been planned
D. were not planned

[单项选择]An auction is usually advertised beforehand with full particulars of articles to be sold and where and when they can be viewed by______ buyers.


A. perspective
B. prospective
C. prosperous
D. profitable

[单项选择]

There have been many great (21) . The first great invention was one that is still very important to day--the wheel. This made it easier to carry (22) things and to travel long distances.
In the early 1800s the world (23) to change. There was little unknown land left in the world. People did not have to explore much any more. They began to work instead to make life belier.
In the second half of the 19th century many great inventions were made. Among them were the camera, the electric light and the radio. These all became a big part (24) our life today.
The first part of the 20th century saw more great inventions: the helicopter in 1909, movies with sound in 1926, the computer in 1928, and jet planes in 1930. This was also a time (25) a new material was first made. Nylon came out in 1935. It changed the kind of clothes people wore.
The middle part of the 20th century brought new ways to help people (26) disea
A. in
B. for
C. to
D. of

[单项选择]The Great Wall is a great tourist （）, drawing millions of visitors from all parts of the world every year.
A. attention
B. appointment
C. attraction
D. interest

[单项选择]The Great Wall is a great tourist ______, drawing millions of visitors from all parts of the world every year.
A. attention
B. appointment
C. attraction
D. interest

[单项选择]Why did the WHO suspend its operation

[单项选择]The whole family were very happy.

[单项选择]American Transcendentalism attaches great importance to ______.
A. Inspiration
B. Imagination
C. Intuition
D. Reason

[单项选择]What is the Great Awakening


A. To cut across the lines of Protestant religious groups or denomination.
B. A revival movement of seeking to breathe new feeling and strength into religion.
C. To live side by side in relative harmony.
D. To spread religious idea to other countries.

[单项选择]The operation of the storage, processing and assembling of the bonded goods and consignment sales should be approved by and registered （） the Customs.
A. for
B. by
C. from
D. with

[单项选择]She stayed at home during the whole summer vacation（）she could look after her old grandmother.
A. in case
B. now that
C. so that
D. as though