Welcome to the Historical Museum, everyone! This stone knife _______ in South Africa and experts can’t be exactly sure about its use.
| A．had been found | B．was found | C．has been found | D．would be found |
I wrote him a letter to show my______ of his thoughtfulness.
| A．achievement | B．agreement | C．attention | D．appreciation |
The surgeon_______ his excellent skill in carrying out the operation.
| A．represented | B．instructed | C．demonstrated | D．exhibited |
It is widely accepted that young babies learn to do things because certain acts lead to________.
| A．rewards | B．prizes | C．awards | D．results |
The policeman saved the little girl from the gangs. He’s never afraid of them. I think he is a man of _________.
| A．importance | B．use | C．courage | D．value |
Everyone should fight for the_______ of their own country.
| A．favour | B．reward | C．honour | D．prize |