--- Alice came back home the day before yesterday.
--- Really? Where ______?
| A．has she been | B．had she been |
| C．has she gone | D．had she gone |
_____ Ming Ming with his sister, I find Ming Ming prefers classical music to pop music.
| A．Compare | B．Compared | C．Comparing. | D．To compare |
——Guess what！I met an old school friend last week.
——How nice！How long____ each other？
| A．didn't you see | B．haven't you seen |
| C．hadn't you seen | D．don't you see |
It_____ years ago when the incident took place, and I nearly forget it.
| A．would have been | B．should have been |
| C．ought to have been | D．must have been |
After the earthquake, the president _____ a three-day period of mourning, the first-ever event of its kind for ordinary people.
| A．suffered | B．declared | C．confirmed | D．informed |
At the root of volunteering is____ idea that one person may have____ ability to offer services that can help other people.
| A．the, the | B．不填; an | C．an ; 不填 | D．不填，the |