The old man has something wrong with her eyes and has to have them_______.
| A．operated on | B．operated |
| C．operate | D．operate on |
—How many mistakes did you make in the exam, Lily? —_________.
| A．None | B．No one | C．All | D．Nothing |
—How nice the building is! What is it for?
—It _________ be a hotel. But I’m not sure.
| A．must | B．could | C．can | D．may |
—When does a lion begin to eat meat?
—I’m not sure. Maybe ________ a few months old.
| A．at | B．for | C．in | D．on |
Like Zhalong, our hometown Yancheng is also ________ ideal home for wildlife.
| A．a | B．an | C．the | D．/ |
He has worked in this school for many years, _______ he?
| A．has | B．hasn’t | C．is | D．isn’t |