We then moved to Chicago in 1995, _____we lived for six years.
| A．when | B．where | C．that | D．which |
_______air pollution getting worse, the government needs to come up with some effective measures to deal with it.
| A．Because | B．For | C．As | D．With |
To her joy, Della earned first the trust of her students and then ____ of her colleagues.
| A．that | B．one | C．ones | D．those |
It was not until she failed in the exam ______she realized the importance of study.
| A．when | B．did | C．and | D．that |
________at the restaurant with a wide variety of dishes served before, Bob didn’t want to eat there again.
| A．Having eaten | B．To eat | C．Eat | D．Eating |
He was about to tell me the secret ______ someone patted him on the shoulder.
| A．as | B．until | C．when | D．while |