________ his lessons , he failed in the exam.
. Experts have warned ______ of the health risks caused by passive smoking.
Many people hope to have a _____ job, especially during the financial crisis.
It’s reported that the mayor who ______ his power to give jobs to his relatives was put into prison.
. ---Why do you say that the doctor is in a _______? ---Because he doesn’t know whether to tell the patient the truth or not.
.It was a long time before she_________ to what he had said.