Swimming alone ____ be ____ dangerous. Do be careful.
| A．need, highly | B．may, high | C．can; highly | D．can; high |
—What’s up? You look down. —I have piles of papers ________, but I type so slowly.
| A．to be typed | B．typed | C．to type | D．being typed |
We must apply what we have learned to our daily work because in no case _____ from practice.
| A．should theory separate | B．should theory be separated |
| C．theory should separate | D．theory should be separated |
—Why do you look so worried?
—My computer broke down and my essay ______ unfinished since.
| A．was left | B．has left | C．left | D．has been left |
Nowadays teachers tend to be more dependent on ________ is thought to be a great teaching aid—the computer.
| A．that | B．which | C．what | D．as |
________ from Milan Trenc’s novel, the film Night at the Museum brings to life a world
where dinosaurs wander the earth.
| A．Adapted | B．Adapting | C．Having adapted | D．To be adapted |