单选题 Good salesmen know by experience instead of by （）the best approaches to take with a particular customer.

单选题 There are several possible explanations for the greater job stability in Japan （）the great job mobility in the United States.

单选题 One will not be （）about his food in time of great hunger.

单选题 The dormitory is being （）to accommodate more students.

单选题 People in other parts of the world have been （）Christmas for many centuries.

单选题 Our son doesn’t know what to （）at the university; he can’t make up his mind about his future.

单选题 After the robbery, the customer was asked to make a （）description of the robber.

单选题 The Broadcasting Museum also offers Saturday workshops to （）children with the world of radio.