What, according to the passage, might make a teacher teach punctuation before children have the ability to write sentences？
A. The demand of a curriculum.
B. The demand of parents.
C. The need of children.
D. The intention to help children in their writing.
The author believes that sentences which do not contain a verb are______.
A. carelessly written sentences
B. useful in teaching punctuation
C. not incorrect sentences
D. based on grammar
【C13】
A. for a moment
B. at the moment
C. at a time
D. at times
What is the main idea of this passage？
A. Health food.
B. The processing of bread.
C. Organic gardens.
D. Poisons.
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