1 . It is with your generous help ________ I firmly believe that I will adapt to the college life as soon as possible. （用适当的词填空）

2 . It was at the school gate _____________we gave the foreign visitors a warm welcome. (用适当的词填空)

3 . Bach died in 1750, but it was not until the early 19th century_____his musical gift was fully recognized.(用适当的单词填空)

4 . It is at the hotel ________ the coach picks up tourists. (用适当的词填空)

5 . It was 80 years before Christopher Columbus crossed the Atlantic ________Zheng He had sailed to East Africa. （用适当的词填空）

6 . It was the boy who had been in prison________stole the money. (用适当的词填空)

7 . It was only after he had read the papers ________ Mr.Gross realized the task before him was extremely difficult to complete. (用适当的词填空)

8 . It was only due to the ongoing support of his wife, parents and friends ____ he eventually found the will to live again. (用适当的词填空)

9 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

During the     1     (twenty) century , the temperature of the earth     2     (rise) about one degree Fahrenheit. It is a rapid increase when compared    3     other natural changes .

There is no doubt    4    the earth is becoming warmer. Scientists believe     5     is human activity that has caused this global warming. The increase in the earth's temperature is due to the    6     (burn) of fossil fuels. Some byproducts of this process     7     (call) “greenhouse” gases, the most important one of    8    is carbon dioxide. Without the “greenhouse effect”, the earth would be thirty-three degree Celsius    9     (cool) than it is. So, we need those gases. The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere, causing the global temperature     10     (go) up.

10 . It was Tom ________ I found it difficult to get along with. （用适当的词填空）