Since I know ______ , I understand why they needed so much money.
— Could you meet me at the airport? — I'd like to,but I'm a fraid I ______ a very important meeting when you return.
We all consider ______ significant that we should cancel the order immediately.
______, everyone present was amused by his adventure story in Africa.
In yesterday’s business training course the consultant instructed us that a good salesman must be ______ if he wants to succeed.
— What a terrible collision accident! — Judging from the scene, personally, it is one or two car drivers, rather than the truck driver, who ______.