In Paragraph 4"as the fit takes them"means____.
A. when they have the energy
B. when they are in the mood
C. when they find conditions suitable
D. when they feel fit
听力原文：Which of the following descriptions about industrial workers is true？
(36)
A. Industrial workers earn income from their factory businesses.
B. The percentage of industrial workers in the labor force is declining.
C. The payment for industrial workers is gradually decreasing.
D. Industrial workers are paid differently from service workers.
【B9】
A. dishes
B. foods
C. courses
D. meals
【B3】
A. away
B. back
C. way
D. over
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