Little John has___________ about all the things he has met. He found a soap and tasted it yestertday.
| A．celebration | B．prediction | C．curiosity | D．permission |
People spend many years learning about favorite sports and ________ how to do them well.
| A．practice | B．practiced |
| C．practicing | D．to practice |
In April, thousands of holidaymakers remained ________ abroad due to the volcanic ash cloud.
| A．sticking | B．stuck |
| C．to be stuck | D．to have stuck |
Today we have chat rooms, text messaging, emailing ... but we seem ________ the art of communicating facetoface.
| A．losing | B．to be losing |
| C．to be lost | D．having lost |
The engine just won't start.Something seems ________ wrong with it.
| A．to go | B．to have gone |
| C．going | D．having gone |
It's no use ________ without taking any action.
| A．complain | B．complaining |
| C．being complained | D．to be complained |