— Have you seen______ pen? I left one here this morning.— Is it___________ black one? I think I saw it somewhere.
A number of tourists _________ Yangzhou many times because it is such a beautiful city.
We _________ six days a week, but now we only work five days.
Listen! The music sounds very _________.
---My pen is missing. I can’t find it anywhere.---I’m afraid you have to buy _________.
It is believed that travelling to Yangzhou in ________ March is ________ enjoyable experience.