Some of the suspects(嫌疑犯) refused to answer and kept their mouths shut.
| A．questioning | B．being questioned |
| C．questioned | D．to be questioned |
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 |
Studying alone, you are free to choose what to learn and when, ________ you don’t need others’ agreement.
| A．while | B．if | C．though | D．as |
Some experts are warning that the step the US government has taken to deal with the current crisis is ______ of much risk.
| A．ones | B．one | C．that | D．those |
We do not know how astronauts can ________ when they spend months in space without the protection of the atmosphere.
| A．get off | B．get up | C．get along | D．get in |