The thief trapped in the house _____ from the window but the fear of falling to his death scared him not to do so.
___ most of the earth’s surface is covered by water, fresh water is very rare and precious.
Helen was much kinder to her youngest son than to the others, ______, of course, made the others envy him.
_____to reach them on the phone, we sent an email instead.
He let me repeat his instructions_____ sure that I understood what was _____ after he went away.
— It’s the classroom! So you ______ know eating is not allowed here. — Oh, sorry.