On _______ whole, science and technology have been benefiting human beings all through _______ history.
| A．a, 不填 | B．a, the | C．the, 不填 | D．the, the |
— Why was it so noisy over there?
— Mo Yan, the Nobel Literature Prize Winner, was surrounded by journalists ____ he made public appearance at today’s press conference.
| A．until | B．so that | C．in case | D．the instant |
The course _______ for introducing multicultural America ranks first in the list of Popularity Courses among students this term.
| A．is intended | B．intended | C．having intended | D．intending |
Finding information in today’s world is easy, but the ______ you are likely to face is how you can tell whether the information you get is useful or not.
| A．conclusion | B．challenge | C．conflict | D．possibility |
After cleaning the skin, she softly _______ a suitable amount of face-cream to the face and neck, and then gently rubbed until it was fully taken in by skin.
| A．polished | B．poured | C．processed | D．applied |
Stone seldom, _______, refuses to help others when they turn to him, for he is only too ready to do so.
| A．if never | B．if not | C．if ever | D．if any |