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Mary _______ for the appropriate words to express her indebtedness to her teacher.

A. provided
B. groped
C. thought
D. asked

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Mathematicians use parentheses to ________ that a certain part of a problem should be solved prior to the rest.

A. detach
B. venture
C. convey
D. assume

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Replace the underlined part with its synonym:What he said seemed simple and clear, but there was an implied meaning that we couldn’t quite fathom.

A. evaluate
B. explain
C. understand
D. infer

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Decide which of the following best states the author's predominant purpose in writing.

A. Reminiscing his personal contacts with Einstein.
B. Illustrating with anecdotes some characteristic features of Einstein both as a man and as a scientist.
C. Explaining the apparent contradiction of Einstein's theory of relativity and his quantum theory of light.

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Einstein had not earned himself a reputation by the time he proposed his theory of relativity and the quantum theory of light.

A. True
B. False

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Mary _______ for the appropriate words to express her indebtedness to her teacher.

A. provided B. groped C. thought D. asked

Mathematicians use parentheses to ________ that a certain part of a problem should be solved prior to the rest.

Replace the underlined part with its synonym:What he said seemed simple and clear, but there was an implied meaning that we couldn’t quite fathom.

Decide which of the following best states the author's predominant purpose in writing.

Einstein had not earned himself a reputation by the time he proposed his theory of relativity and the quantum theory of light.

A. provided
B. groped
C. thought
D. asked