单项选择题

(Red and green) light, (if mixing), (in) the right proportion, (will give) us yellow.()

A. Red and green
B. if mixing
C. in
D. will give

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单项选择题

What’s the author’s attitude towards American higher education()

A. Critical.
B. Neutral.
C. Praising.
D. Uninterested.

单项选择题

Which statement is NOT true, according to the passage about educational tests()

A. Some students "shine" unexpectedly.
B. Predictions do not always hold true.
C. Personality tests often fail to measure the true personality.
D. The supervisor of the test must be very well trained.