______ leaves the room last ought to make sure that the windows are closed and the door locked.
| A．Whoever | B．Who | C．Who will | D．Those who |
We should think of ways to stop the waste from the factory _____ our living environment.
| A．being polluted | B．polluting | C．from being polluted | D．polluted |
The mistakes made by Chinese students are quite different from ________made by the Japanese students in English study.
| A．That | B．which | C．what | D．those |
___ are very deligent.
| A．Both the girls | B．Both they | C．The both girls | D．They of both |
Having been born on the earth, we had no choice but ________ hospitality it offered.
| A．to accept that | B．accept how | C．to accept what | D．accept what |