54. We should always keep ______ well-informed of the changing information.
| A．us | B．ours | C．ourselves | D．we |
Barbara is easy to recognize as she's the only one of the women who ______ evening dress.
| A．wear | B．wears |
| C．has worn | D．have worn |
I,____ your friend, will try my best to help you out.
| A．who is | B．that is |
| C．who am | D．who are |
The number of people who __________ cars __________ increasing in China.
| A．owns; are | B．owns; is |
| C．own; is | D．own; are |
Every possible means __________ to save the wounded soldier up to now.
| A．was tried | B．were tried |
| C．have been tried | D．has been tried |
Not only I but also Jane and Mary __________ tired of doing the same thing all the time.
| A．is | B．are |
| C．am | D．be |