--- ____ does her brother improve his English? --- He improves it____ asking the teacher for help. A. How; by B. What ; with C. Why; by
It become much _______ to provide enough energy for a big city with large population.
We all feel very glad that our school uniforms next month.
—Do you know ______? — A reporter, I think.
— Dear, what time is the flight to Beijing on Saturday? — Wait a minute. Let me _______ in the schedule(时刻表).
Each of us has to write a _____ report every two weeks.