John’s quick action shows that ________ knowledge of first aid can make real difference in saving a person’s life.
The reason _____ their failure you know is ______ they didn’t get fully prepared for the experiment.
Susan could be a very attractive girl but she ____ no attention to her clothes.
During the meeting a young man cried out suddenly and threw his notebook at the chairman, _____brought the room to disorder.
I ______ her not to walk on the thin ice but she wouldn’t listen to me.
Do you understand the theory ______?