My father and my mother have been married for 30 years, and never once ______ with each other.
This dictionary is very useful. It has ___ many problems about words and idioms for me.
It’s foolish to go to the ___ of taking music lessons if you never practise.
He is delighted to have ___ the examination.
The carpet where he _____was warm and comfortable, so he slept soundly.
Any student _____ will be disqualified from the exam.