A、Engine trouble. B、Poor weather. C、Tall waterfalls. D、Tight budget. A

Good evening! Now, I know many of you are excited about the idea of getting paid to travel the world and see the sights. But remember, traveling isn’t all fun and games. It is hard work too. I remember when I was in Egypt to look at the pyramids. Now, of course they are fascinating—they are over 4,000 years old—but remember, Egypt is mostly desert and the temperature is often over forty-five degrees! So, the weather can be a problem.
    And several years later, I was traveling down the Yangtze River in China with some photographers, and we constantly had engine trouble with our boat, so we couldn’t steer along the 6,380-kilometer river. Instead, we had to abandon our journey just after 2,150, which was a major disappointment.
    The last journey I want to tell you about was the most rewarding. We went to Angel Falls, the tallest waterfall in the world. We backpacked for seventeen days through the jungles of Venezuela to get there. But when they finally came into view, with their breathtaking drop of 807 meters, it was incredible! So, remember, being a travel writer may sound like an amazing career, and it is certainly rewarding, but you have to be prepared for every possibility!
Questions 11 to 12 are based on the passage you have just heard.
11. What forced the speaker to stop his journey down the Yangtze River?
12. What does the speaker think of his job?