People will thank the firefighters for the things they do to prevent fires ________ the environment safer.
The English Channel , ______ England from France , is wide enough for her to swim across.
– What makes her so upset?--- ___________.
Finally they arrived at a place_______ sold cigarettes and other small articles.
She tried _______, but failed; now she could do nothing but wait till her husband came.
She ______ another match and in the light she made her way without making any noise.