________ got on the train when it started to move.
The Canadian friends from our school have given us a lot of books, few of______ a bit difficult for us Chinese students.
Words _____ me when I wanted to express my thanks to him for having saved my son from the burning house.
—He is ________ a brave man. —We can’t admire his courage___________.
—How often do you eat out?—________, but usually once a week.
“Hope for the best and prepare for the worst.” is a proverb, ______ life is beautiful and full of frustrations as well.