1. 单项选择:
1) It's already 10 o'clock I wonder how it _______ that she was two hours late on such a short trip.
A. came over B. came out C: came about D. came up
2) The better __________ you have of words, the better chance you have of saying exactly what you mean.
A. demand B. comment C. command D. performance
3) The teacher usually writes his _________ on the margin of the composition.
A. comments B. words C. review D. command
