The father stayed up late, ______ a long letter to his son.
______ at my classmates’ face, I read the same excitement in their eyes.
When asked ____ they needed most, the kids said they wanted to feel loved.
It’s said that the early European playing-cards ______ for education.
--- I think he is taking an active part in social work. --- I agree with you _________.
By the time he was seven he had learned _____ 2000 English words.