51. What does the author say about the assumptions made about the intentions behind a person's behavior?
A、They should be trusted.
B、They are often bold.
C、They are often incorrect.
D、They should be encouraged.
46. What can we learn from the passage?
A、Apples are better than oranges.
B、Apples do have some vitamin C to increase the immune system.
C、Apples can help cure certain diseases.
D、Apples can provide people with sufficient daily intake of energy.
Ⅱ. Vocabulary and Structure ( 15 points ) Directions : There are 15 incomplete sentences in this section. For each sentence there are four choices marked A, B, C and D. Choose one answer that best completes the sentence and blacken the corresponding letter on the Answer Sheet. 6. Jonathan and Joe left the house to go for__ after supper.