Johnson,          to grasp the chance to become a doctor, decided to take up teaching.

．(2013·江西九江高三二模)________ around the university, we then were taken to a building, where many scientists worked.

______ the blind wandering through the traffic, motorists would have to step on their brakes at once.

Fully ________ in my office work, I have little time for housework.

The Wangs are considering  ______  to Huangshan for a trip at five tomorrow morning.