--- Hello! Is Mr. John in the office?
--- Yes. But I’m sorry. He is busy _________ and can’t speak to you.
| A．at once | B．at present | C．at the end | D．at first |
O. Henry, _____short story the Gift of the Magi is a good example of true love, is a pen name.
| A．what | B．whose | C．who | D．which |
I needn’t have been in that hurry. The flight to Chongqing ______ due to the foggy weather.
| A．has cancelled | B．was cancelled |
| C．will be cancelling | D．had cancelled |
Treat the flowers right and your garden will be the ______ of the neighborhood.
| A．destination | B．cause | C．purpose | D．Envy |
句意：Jack Ma is ambitious about his firm’s future, ______ that Alibaba’s achievements will one day top Walmart.
| A．says | B．to say | C．saying | D．said |
Obviously, the ability to talk is ______ that marks humans off from animals.
| A．something | B．anything |
| C．nothing | D．everything |