The sound quality is __ on a regular CD.
A. superior to that
B. superior to it
C. better than it
D. higher than that
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___ all you say, I think she's the best teacher we've got.
A. Though
B. For
C. Even
D. Even though
Which of the following is NOT true about the author's family?
A. He came from a middle-class family.
B. He came fromsingle-parent family.
C. His mother worked as cleaner.
D. His mother had received little education.
The best title for this passage is “————”.
A. The Influence of the Sun and Tide
B. A Discovery in Biology
C. The Fiddler Crab
D. A Living Clock
The crab’s color-changing ability was probably developed ————.
A. in the process of evolution
B. over millions of years
C. by the work of biologists
D. both A and B
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