---Why did you leave that position?
---I a better position at IBM.
| A．offer | B．offered | C．am offered | D．was offered |
He devotes ________to ________.
| A．himself; teaching | B．himself; teach |
| C．him; teaching | D．him; teach |
Don’t turn on the radio __________ your mother allows you.
| A．unless | B．because |
| C．if | D．and |
The room ___________ window is open is mine.
| A．which | B．its | C．that | D．whose |
My mother insist________ sending me to the hospital.
| A．of | B．on | C．in | D．about |
Shanghai is the city ______ he was born.
| A．what | B．where | C．when | D．which |