简单单选

• 1、

  Ants always put food away in Autumn.（　）

• 2、

  I recommend you buy a computer.（　）

• 3、

  You should soon regain your appetite.（　）

• 4、

  Helen will leave immediately.（　）

• 5、

  We resolved the problem after group discussion.（　）

• 6、

  Cement was seldom used in buildings of the Middle

• 7、

  There is an abundant supply of cheap labor in this

• 8、

  The most crucial problem any economic system faces

• 9、

  He made an immense amount of money in business.（　）

• 10、

  The substance can be added to gasoline to accelera

• 11、

  The manager allocates duties to the clerks.（　）

• 12、

  The once barren hillsides are now good farmland.（　

• 13、

  It is postulated that a cure for the disease will

• 14、

  We must abide by the rules.（　）

• 15、

  From my standpoint, you know, this thing is just f