单项选择题
According to the passage, the sloth will move about when（）
A．it senses a coming danger B．it is forced to swim on a hot day C．it is short of its favorite food D．it wants to keep itself to itself
单项选择题 30（）
单项选择题 A suitable title for this passage might be（）
单项选择题 Which of the following is NOT true about the sloth （）
