As a result, these endangered animals may even __________.
| A．die away | B．die down | C．die out | D．die off |
—Would you rather come on Friday or Saturday?
—_____.
| A．Yes, of course | B．The other is better |
| C．What’s the matter | D．Either would suit me |
—Did you look up the time of trains to Shanghai?
—Yes, the earliest train is _____to leave at 5:30 am.
| A．likely | B．about | C．possible | D．due |
--Did Mary come to your birthday party?
--No. I __________ her, but she was away on business.
| A．would like to invite | B．would have liked to invite |
| C．must have invited | D．could invite |
All the preparations_______, we're ready to start.
| A．made | B．being made |
| C．having made | D．have been made |
--Do you know when the Chinese custom_________ from?
--It's hard to say. But its characteristics__________ the Tang Period.
| A．began ; prove | B．started ; show |
| C．is ; appear | D．dates ; suggest |