99、《缘缘堂随笔》的作者是( )

84、You’d better add them up. I’m not good at ( ).

83、A highly organized system of irrigation is ( ) Chinese agriculture.

82、Jack is very ( ) about wines.

81、As for Ann, I am not sure about her ( ) in Italian.

80、Hydrogen is one of the most important elements in the universe ( ) it provides the building blocks from which the other elements are produced.

79、When traveling, it is possible that you may be advised to take the travelers’ checks, which provide a secure ( ) to carry your money in cash.

78、In order to be a good scientist, ( ).

77、According to official statistics, retail sales in China rose 10% and 12.2% in the first and the second quarter ( ) this year.

76、The ( ) of the priest’s sermon was that all human beings should love each other.

75、In the process of preparing a research paper, ( ) should be the first step.