[单项选择]The boss put great (stress) on the workers so that they could work harder.
A. anger
B. control
C. pressure
D. nerve

[单项选择]The boss put great (stress) on the workers so that they could work harder.
A. anger
B. control
C. pressure
D. nerve

[单项选择]The Great Wall is So a well-known tourist attraction that millions of people pour in every year.
A. The
B. So a
C. tourist attraction
D. millions

[填空题]He was (terrible) ______treated by his boss and so resigned.

[填空题]The secretary is so efficient that his boss think (high) ______ of him.

[填空题]The workers are so efficient that their boss praises（）(high) of them.

[单项选择](The) Great Wall is (So a) well-known (tourist attraction) that (millions) of people pour in every year.（）
A. The
B. So a
C. tourist attraction
D. millions

[填空题]The secretary is so efficient that his boss thinks (high) （）of him.

[单项选择]Coins are to be put into 7 pockets so that each pocket contains at least one coin. At most 3 of the pockets are to contain the same number of coins, and no two of the remaining pockets are tO contain an equal number of coins. What is the least possible number of coins needed for the pockets ？（）
A. 7
B. 13
C. 17
D. 22
E. 28

[单项选择]— I’m （） sorry to have put you into so much trouble.
— It doesn’t matter.
A. extremely
B. extensively
C. too
D. much

[单项选择]To us it seems so natural to put up an umbrella to keep the water off when it rains. But actually the umbrella was not invented as protection against rain. Its first use was as a shade against the sun.
Nobody knows who first invented it, but the umbrella was used in very ancient times. Probably the first to use it were the Chinese, way back in the eleventh century B.C.
We know that the umbrella was used in ancient Egypt and Babylon as a sunshade. And there was a strange thing connected with its use: it became a symbol of honor and authority. In the Far East in ancient times, the umbrella was allowed to be used only by royalty or by those in high office.
In Europe, the Greeks were the first to use the umbrella as a sunshade. And the umbrella was in common use in ancient Greece. But it is believed that the first persons in Europe to use the umbrella as protection against the rain were the ancient Romans.
During the Middle Ages, the use of the umbrella practically disa
A. in Europe in the eighteenth century
B. in ancient Egypt and Babylon
C. in the Far East in ancient times
D. during the Middle Ages