In the last sentence of the first paragraph, the word "lists" could best be replaced by______.
A. any questions
B. any problems
C. questions from textbooks
D. any number of questions
The poor old man came to the palace ______.
A. to get his father's gold back
B. to get the bag of gold
C. to tell the king a true story
What's the best title (题目) of the passage？
A. My Letter to Mother
B. Mother and Children
C. My Mother's Desk
Your service is entirely______, not compulsory.
A. preferential
B. reluctant
C. selective
D. voluntary
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