17.—Sorry we're late.We ______ the wrong turning. —That's all right.Come in, please.
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.