What do all of the addictives in bread have in common？
A. They all used to keep the bread from getting moldy.
B. They are all poisonous.
C. They are all organic.
D. They have all killed laboratory animals.
查看答案
【C12】
A. put down
B. turn down
C. do away with
D. run out of
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
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