—Did you have any difficulty catching yesterday’s lecture?—No. The professor spoke very clearly to make his speech easy _____.
____ the distance was too far and the time was short, we decided to fly there instead of going there by train.
He went to bed ____, and when he woke up he found he still had his shoes on.
When I said some students were so lazy, I ___to you.
Who would you get ____ to the cinema with you?
---How much shall I pay for the phone call? ----You ____ .This is free of charge.