We feel our duty to make our country a better place.
| A．it | B．this | C．that | D．one |
The museum will open in the spring with an exhibition and a viewing platform____ visitors can watch the big glasshouses being built.
| A．what | B．where | C．when | D．why |
（2013·新课标Ⅱ卷)When I arrived, Bryan took me to see the house_ I would be staying.
| A．what | B．when | C．where | D．Which |
He wrote a letter ________ he explained what had happened in the accident.
| A．what | B．which |
| C．where | D．how |
The days are gone______physical strength was all you needed to make a living.
| A．when | B．that |
| C．where | D．which |
Happiness and success often come to those ________ are good at recognizing their own strengths.
| A．whom | B．who |
| C．what | D．which |