--Hi, Tracy, you look tired.
--I am tired. I__________ the living-room all day.
| A．painted | B．have been painting |
| C．had painted | D．have painted |
The Olympic _____ remind us of where the Olympics are held and the characteristics of the host country.
| A．symbols | B．signals | C．marks | D．signs |
He came here without friends or ______and made his fortune.
| A．possessions | B．possession | C．wealth | D．good |
Some companies are thinking of ways to save natural _____ by making better use of the water used in the bathroom.
| A．resources | B．sources | C．power | D．energy |
One should have a _______ of right and wrong.
| A．feeling | B．knowledge | C．sense | D．idea |
The head office of the bank is in Beijing, but it has _________ all over the country.
| A．companies | B．branches | C．organizations | D．businesses |