________ all the homework assigned by the school, the students have to work at it till midnight.
| A．Completing | B．To complete |
| C．Having completed | D．To have completed |
A terrible earthquake happened in that district at the end of 2004, ____ many countries in the world paid close attention to this.
| A．where | B．when | C．which | D．what |
The president stood by a window inside the room, ____, looking over the square.
| A．where I entered | B．into which I entered |
| C．which I entered | D．that I entered |
The engineers made two big plans for the dam, ____ was never put in force.
| A．one of them | B．which |
| C．one of which | D．every one of which |
—Your book, Tommy?
—No, Mom, it’s my friend’s.
—Remember to return it to ____ name is on it.
| A．what | B．which | C．whose | D．whosever |
I’d like to live somewhere ____ the sun shines all year long.
| A．which | B．that | C．where | D．in which |