We are going to Beijing. Can you _________when the train will leave ?
When the sun shines, the clouds _________ , and we can see everything much better.
The Three Gorges Dam can produce _________ for millions of people every year.
— Shuofang Airport, please. I have to be there by 7:00.— _________, but I'll do my best.
I don’t doubt _________.
—Is your uncle in his _________?— Yes. His _________ birthday is coming next month.