Water can absorb and give off a lot of heat without big changes in temperature, thus creating a ______environment.
| A．stable | B．sensitive |
| C．common | D．peaceful |
The girl hid herself under the table ______ she could see everything taking place in the room.
| A．after which | B．from where | C．from which | D．in where |
How long do you think it will be ________ the computer company puts forward a new product?
| A．before | B．since | C．until | D．that |
Several of the passengers were hurt and one was taken to hospital. Luckily ____ was killed.
| A．no one | B．not all | C．none | D．no other |
I can’t say which type of tea tastes better. It’s just a（an） ______ of personal preference.
| A．affair | B．problem | C．variety | D．matter |
______ that he has no qualifications in business management, Ken plans to gain the necessary skills by taking a part-time course.
| A．Concerning | B．Concerned | C．Being concerned | D．To concern |