So far nobody has claimed the money __________ in the library.
| A．discovered |
| B．to be discovered |
| C．discovering |
| D．having discovered |
—Peter, you look so tired and wet all over!
—Yes, all afternoon I ________ football on the playground.
| A．am playing | B．have been playing | C．played | D．have played |
The passengers were at ________ loss when ________ word came that their voyage was called off because of the hurricane.
| A．the; a | B．a; the | C．a；/ | D．/; a |
— Did you enjoy the film you saw last night?
—______. I just did it for a change, as I was tired from working all day.
| A．Not necessarily | B．Not exactly | C．Not likely | D．Not really |
— You should have told her about the meaning of the gesture.
— I meant ______, but I had some unexpected guests.
| A．to do | B．to have | C．doing | D．doing so |
This building is both a secret and a mystery. No one shall be admitted into it ______ he can give the right password.
| A．if | B．as | C．since | D．unless |