—Who left the door open?— Oh, sorry. I _____ the door.
Which sport costs the most _____ training facilities, players’ personal equipment and uniforms?
— That’s the third time he’s won the award in this field.— Yes. He ______ his maximum potential in the past decade.
It is clear that in modern society high _______ and demands are placed on students.
___ himself in carrying out an experiment, he can’t spare time to look after his children.
This argument sounds reasonable, but ___________ it’s incorrect.