So difficult __________ it to work out the problem that I decided to ask Tom for advice.
These countries will join one another against terrorism, _______was agreed to at the international conference.
Yesterday evening I came across the man _____ you think is pleased to _____.
In some countries, _____ are called “public schools” are not owned by the public.
—I’d like to invite you to my birthday party this evening. —Thanks, but ____ I’ll have time I’m not sure at the moment.
Determination is a kind of basic quality and is __________ it takes to do jobs well.