________the population of Shandong Province?—I can’t say exactly, but I know it ________ about 80 million

Don’t worry! I’m sure you’ll your classmates if you are kind and friendly to them.

What’s the matter with Della? —- Well, her parents wouldn’t allow her to go to the party, but she still ____.

She ____to the cinema for I saw her just now. [ ]

My son is _____ to be seen. Where has he gone — I think he _____ in the building.