I was out of town at that time, so I didn't know exactly_____.
---What time does the library open? --- ______ eight o’clock.
---I took lots of photos in Hainan. ---Really? Could you show ______ to me?
—Do you know ________? —Next month.
More and more parks ________in Mentougou in five years.
It’s time for class. So stop ________, please.