The author of the report is well _____ with the problems in the hospital because he has been working there for many years.
It was in the Beihai Park ______they made a date for the first time ______the old couple told us their love story.
She _____volleyball regularly for many years when she was young.
The Internet is a wonderful discovery, ___of great significance to people’s lives.
The other day ,my father drove his car at _____I thought was a dangerous speed.
______the telephone number several times, but he couldn’t learn it by heart.A Having been told B. He had been told . C. Although he had been told. D. Having told