. It is difficult for us to learn a lesson in life __________ we’ve actually had that lesson.
I don’t think that they will watch the movie; it is ___ children.
I couldn’t do my homework with all the noise ___.
Their class is __ a camera, a TV and a computer.
Every time I went to visit Mount Tai, it __ me with its nature beauty.
All the staff in our company are considering ___ to the city center for the fashion show.