We will have a big test ___________ June 12th. Good luck to you.
I ________ the room yesterday, so it is not dirty today.
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 _________.