It was not until the outbreak of the disease ____ . A: when people realized the importance of health B: thatpeople realized the importance of health C: aspeople realized the importance of health D: when the importance of health has been realized

"No wonder people doing sports regularly are more energetic and healthy." means__________ A: Now I see why people doing sports regularly are more energetic and healthy. B: I don't know whypeople doing sports regularly are more energetic and healthy. C: It is common thatpeople doing sports regularly are more energetic and healthy. D: It is weird that people doing sports regularly are more energetic and healthy.