These trees must have been planted three years ago, _____?
| A．mustn’t they | B．weren’t they |
| C．didn’t they | D．haven’t they |
With more than 17000 islands, _____ only 6000 are inhabited, Indonesia is the world’s largest archipelago （岛国）．
| A．on which | B．for which | C．of which | D．along which |
— Where will you start your work after graduation？
— It’s not been decided yet．I _______ continue my studies for a higher degree．
| A．need | B．might | C．would | D．must |
If more readers become comfortable with reading digitally, _______ but the book-collectors will want to buy paper books．
| A．anyone | B．someone | C．no one | D．none |
Nearly three days after an 8．8-magnitude earthquake, rescuers in Chile were making every
effort to _______ possible survivors．
| A．trap | B．reach | C．shelter | D．seize |
The meeting achieved _______ a short statement, leaving many details to be worked out later．
| A．other than | B．anything but | C．little more than | D．more or less |