--______ have you stayed in this school ?
---For three years.
| A．How far | B．How long | C．How often | D．How many |
We all feel ______after hearing of the _______news.
| A．excited;excited | B．exciting;exciting |
| C．excited;exciting | D．exciting;excited |
We should set up some shelters _____the homeless people.
| A．help | B．helping | C．helped | D．to help |
It is_______ interesting book ,we all like it.
| A．such a | B．such an | C．so a | D．so an |
Our teacher told us ______carefully in class.
| A．listen | B．to listen | C．listened | D．listens |
Some ______are ______their time to help the old people.
| A．volunteer; volunteer | B．volunteers; volunteering |
| C．volunteering; volunteers | D．volunteers; volunteers |