_____ he’s only been learning English for a year, he speaks it very well.
| A．Considered | B．Considering |
| C．Having considered | D．To consider |
Whatever is left over may be put into the refrigerator, __________ it will keep for two or three weeks.
| A．when |
| B．which |
| C．where |
| D．while |
She showed the visitors around the museum, the construction __________ had taken more than three years.
| A．for which |
| B．with which |
| C．of which |
| D．to which |
Was it on a lonely island __________ he was saved one month after the boat went down?
| A．where |
| B．that |
| C．which |
| D．what |
—Silly me! I forget what my luggage looks like.
—What do you think of __________ over there?
| A．the one |
| B．this |
| C．it |
| D．that |
We have various summer camps for your holidays； you can choose __________ based on your own interests.
| A．either |
| B．each |
| C．one |
| D．it |