She looked in the direction of the window, but there was nothing in front ______ the deep darkness.
My mother ________ me not to go to Athens to watch the 2004 Olympic Games, but she failed.
I’d like to know the way you succeeded in the experiment.
"Not all of the snakes were dangerous." this means _________.
It was not until midnight _________ his father came back.
________ she has made up her mind, nothing can change it.