Mary once taught English in a remote village school as a volunteer, which is ________ only on foot.
| A．acceptable | B．accessible |
| C．available | D．appropriate |
Sustainable development is long-term ______which focuses on the environment and _____ natural resources．
| A．plan; preserve | B．plan; preserving |
| C．planning; preserving | D．planning ;preserve |
at the party, we saw Ruth standing alone in the corner of the hall.
| A．Arriving | B．To arrive | C．Arrive | D．Arrived |
we will do is to leave a note to tell Mum we will be back late.
| A．Whether | B．What | C．That | D．How |
They hurried to the train station, it was too late. They had to wait another ten minutes.
| A．but | B．so | C．and | D．or |
Cathy went to the hospital alone. If she had told me about it, I with her.
| A．had gone | B．would have gone | C．would go | D．went |