题目

Scientists smiled as the three young whales swam through the ocean, turning over, jumping, and racing one another in circles around the ship. After spending seven months in a 60,000 gallon (228,000-liter) pool at the New England Aquarium（水族馆）in Boston, Mass, the whales were now free. The pilot whales, named Notch Small, and Tag, had been staying at the pool ever since they were saved after running aground on a Cape Cod beach in Massachusetts last December. Although about 60 other whales died during that running aground the three young whales were saved and nursed back to health. Las--- Walking an hour every day is good for our health.--- Exactly. However, ________. A．I love doing it very much.B．I don’t hate it.C．Climbing a mountain is also good.D．I don’t like to do it every day.