Deng Yaping could play ping-pong when she was four.
| A．at the age of four | B．four years later |
| C．for four years | D．four years age |
Most students like the teachers understand them well.
| A．which | B．who |
| C．where | D．when |
Can you describe the people and the things ______ have been seen in Tibet?
| A．which | B．that | C．who | D．/ |
The woman ________ bought a doll for me is my aunt.
| A．who | B．whose | C．whom | D．which |
The young man ________ is a friend of mine.
| A．who I had a talk | B．whom I had a talk |
| C．whom I had a talk with | D．which I had a talk with |
It is I against the plan, because it sounds impossible to carry out.
| A．that is | B．who am |
| C．who are | D．that are |