中国大学MOOC: The application of laser in medicine is still in its infancy.

Passage Four When is a driver likely to have a sleep-related accident according to researchers A: In the middle of the morning is 10 times as likely as those driving in the evening. B: Very early in the evening is as likely as those driving early in the morning. C: Very early in the morning is much more likely than those driving early in the evening. D: In the middle of the evening is 10 times as likely as .those driving early in the morning.

中国大学MOOC: We arrived at work in the morning and found that somebody ____ into the office during the night.

Early the morning when most people are still in their dreams, Mr. Harrison has got up.

中国大学MOOC: 1. In France, it’s customary for people ( ) when they meet in the office every morning.