单项选择

• 1、

  It can be regarded as the worst day in my entire l

• 2、

  Cement was seldom used in building the Middle Ages

• 3、

  His idea to solve the problem is really original（　

• 4、

  Loud noises can be annoying（　）.

• 5、

  We become susceptible to the moods and feelings, t

• 6、

  Numerous attempts have been made to hide the truth

• 7、

  Finding a job can be depressing and disappointing,

• 8、

  Even in a highly modernized country, manual work i

• 9、

  About one million Americans are diagnosed annually

• 10、

  These programmes are of immense value to old peopl

• 11、

  The old man lodged an official complaint about his

• 12、

  The emphasis on the importance of education has sp

• 13、

  There is an abundant supply of cheap labor in this

• 14、

  You don't need to carry large amounts of cash; act

• 15、

  "You want me to send in three men to dig the box u