The author of the report is well _____ with the problems in the hospital because he has been working there for many years.
Winter is coming and the people who are homeless need warm clothes to protect themselves ______ the cold.
John thinks it won't be long _he is ready for his new job.
The boy was _by a dog this morning, which caused a quarrel between neighbours.
Too much drinking will do ______ to your health; you should take the doctor's advice.
I like these English songs and they _______ many times on the radio.