______ a chance to learn from the teachers from foreign countries is really an honor for me.
I made a promise to myself _______ this year, my first year in high school, would be different.
Nothing is so easy as _____ parents to raise their expectations of their children too high.
The air quality in the city, ______ is shown in the report, has improved over the past two months.
Letterboxes are much more in the UK than in the US, where most people have a mailbox instead.
When different cultures, we often pay attention only to the differences without noticing the many similarities.