---We haven’t seen each other for ages.---No, I don’t remember how many years ago _______ I last saw you.
He had to take the medicine 3 times a day to be _______ the pain in the leg.
Whenever he was asked why he was late for class,he would answer carelessly,______ the same thing.
He is the most suitable person _______the task.
_________, the experiment is sure to succeed.
The cost of buying a house in Beijing is higher than ______in Luoyang。