Nowadays people sometimes separate their waste to make it easier for it ______. .
---Who can it be that hasn’t handed in his composition?---It ______ be Robinson. He ______ it in yesterday.
“Whatever you want, you ____ have it so long as you get the best result,” said the boss.
It was a matter of ______ would take the position.
The reason ______ he gave his teacher for being late is ______ there was a lot of traffic on the road.
There is no doubt ______ he said at yesterday’s meeting was true.