Do you know the danger caused by smoking?—Yes, too many cigarettes can lead to_______ lung cancer.

The author of the report is well _____ with the problems in the hospital because he has been working there for many years.

He got to the station early, _____ missing his train[ ]

________production up by 60%，the company has had another excellent year.

__energy, we turn off the lights for EarthHour on the last Saturday in March