单选题

• 1、

  You must {{U}}shine{{/U}} your shoes.

• 2、

  Sulphur has {{U}}occasionally{{/U}} been found in

• 3、

  The dentist has decided to {{U}}extract{{/U}} her

• 4、

  A {{U}}deadly{{/U}} disease has affected these ani

• 5、

  Even in a highly modernized country, {{U}}manual{{

• 6、

  The majority of people around here are {{U}}decent

• 7、

  John Hanson helped {{U}}draft{{/U}} instructions f

• 8、

  Many {{U}}residents{{/U}} of apartment complexes o

• 9、

  The {{U}}steadily{{/U}} rising cost of labor on th

• 10、

  When she was invited to the party, she {{U}}readil

• 11、

  I {{U}}rarely{{/U}} wear a raincoat because I spen

• 12、

  Techniques to {{U}}harness{{/U}} the energy of the

• 13、

  {{U}}Practically{{/U}} all species of animals comm

• 14、

  When doves are about two weeks old, they are cover

• 15、

  Hundreds of years ago cloves were used to {{U}}rem