The examination results __ in the speech of our headmaster delighted all of us.
| A．refer to | B．referring to |
| C．was referred to | D．referred to |
The hotel wasn’t particularly good. But I ________in many worse hotels.
| A．was staying | B．stayed | C．would stay | D．had stayed |
_______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 |