Researchers claim ______ the first proof that getting a regular eight-hour sleep every night makes a real difference to our health.

(单选题)What can we infer from Johnsy’s counting back suggest？ (单选题)What was Sue’s response after hearing what the doctor said? (单选题)What might be the suitable title for the passage? (单选题)How did ponderosa pines adapt to droughts? (单选题)What does the underlined word “predicament” mean? (单选题)The author wrote the text mainly to ______. (单选题)According to the text, Blue Peter ______. (单选题)35.（ ） (单选题)34.（ ） (单选题)33.（ ）