单项选择

• 1、

  The company recommended that a new gas station be

• 2、

  Why can't you stop your eternal complaining（　）

• 3、

  The number of the United States citizens who are e

• 4、

  The Klondike was the scene of one of the biggest g

• 5、

  It is a complicated problem（　）.

• 6、

  They have the competence to take this job（　）.

• 7、

  There was a rapid increase in population in the la

• 8、

  They are worded about their capacity to invest in

• 9、

  She longed for a chance to speak to Tom in private

• 10、

  The high-speed trains can have a major impact on t

• 11、

  His motive in coming was to find out the truth.（　）

• 12、

  Successful leaders dominate events rather than rea

• 13、

  The use of the chemical may present a certain haza

• 14、

  I was shocked when I saw the size of the telephone

• 15、

  Nerve signals may travel through nerve or muscle f