43. Which of the following best describes their Canyon trip by air? (A)It proved to be frightening. (B)It was more comfortable (C)It turned out to be exciting (D)It made each of them tired.

41.Which of the following is true according to the second paragraph? (A)They made a careful preparation before the trip (B)They children were more joyful than their parents. (C)Bright Angel Trail was not as lovely as they expected. (D)The summer heat prevented them from enjoying the view.