3. The United Nations was supposed to ___________ the role of global peace-keep.
| A．undertake | B．understand | C．underway | D．Undergo |
When Kerry and Sam met again two years later, each was pleased to see ________.
| A．the other | B．others |
| C．another | D．other |
There is a subway in my hometown, but ________ existed two years ago.
| A．none | B．nobody |
| C．everything | D．anything |
I prefer a house in beautiful surroundings in the countryside to ________ in such a noisy street in Shanghai.
| A．it | B．that |
| C．this | D．one |
He is so young and short a man that I think he is ________ but a professor of Northwest University.
| A．anything | B．something |
| C．everything | D．nothing |
They have done much of the work; when will ________ be finished?
| A．the rest | B．the other |
| C．another | D．the others |