阅读理解。 One Sunday, Mike decided to go sailing in his boat with his friend Jack. But Jack happened to be away. Jack's brother, John, wanted to go with him, but he didn't know anything about sailing. Mike agreed and they started to go out to sea. Soon they found themselves in a thick fog. Mike was sure they would be hit by a big ship. Luckily, he saw a large buoy(浮标) through the fog and decided to tie(系) the boat to it for safety. As he was getting onto the buoy, however, he dropped the wet rope(绳). The boat moved away in the fog carrying John. Because John didn't know how to use the radio(无线电波), the boat went around in all directions. Twelve hours later, he was saved. Mike spent the night on the buoy. In the early morning he fell asleep. He was having a bad dream when a shout woke him up. A ship, the Good Hope, came up and he climbed onto it and thanked the captain (船长). The captain told him that John had been saved by another ship. That ship's captain gave a message to tell this captain that Mike was on the buoy. 1. Why didn't Mike and Jack go sailing together? Because _____. A. Jack asked his brother to go instead B. Jack was in some other place C. Mike was in some other place D. Mike would like to go with John 2. Mike tried to tie the boat to the buoy so that _____. A. he could spend the night on it while John was looking for help B. he and John could go sailing again when the fog was away C. it wouldn't be hit by other ships D. he might be hit by a passing ship 3. John was carried away by the boat because _____. A. there wasn't room for both John and Mike on the buoy B. John couldn't drive the boat and the boat went around in all directions C. Mike thought it safe to stay on the buoy but John didn't D. John had to stay in the boat to radio for help 4. Who saved Mike? A. A bad dream B. The captain from the Good Hope C. Jack D. Himself 5. Was John still alive? A. Yes, he was B. No, he wasn't C. Yes, he did D. No, he didn't