When _____different cultures, we often pay attention only to the differences without noticing the many similarities. [ ]

Jane is in a hurry because the train to the airport leaves _______ half an hour.

Miss Gao asked her mother if she _______ to the hospital the day before when she was out

__________ computers are there in your class—There are forty-five, forty-four for students and one for the teacher.

Why not take_______ umbrella with the sign "Madein china" It is_______ useful one.