题目

                      Ways to Sleep Smarter Studies show that poor sleep influences people to make good decisions, concentrate on tasks or even manage a friendly mood at work.    36   . Today we’ve got our top favorite sleep tips and facts. Set a regular bedtime    37   . Choose a time when you normally feel tired. Try not to break this routine(惯例) on weekends when you will probably stay up late. If you want to change your bedtime, make the change gradually, such as 15 minutes earlier or later each day. Eat the right food     Some foods are more hThere was plenty of time. She ________. A. mustn’t have hurried B. needn't have hurried C. must not hurry D. couldn't have hurried