_______the virtual world of RealCine, the headsets even have small openings _______ smells to match the environment.
| A．Adding to; give out | B．Added to; give off |
| C．To be added to; giving off | D．To add to; giving out |
Being somewhat shortsighted，she had the habit of______at people.
| A．glancing | B．glaring |
| C．gazing | D．scanning |
He returned from a long journey，________．
| A．exhaust | B．exhausted |
| C．to exhaust | D．exhausting |
Teachers should keep students________a distance，but not ________the distance.
| A．at；in | B．in；in |
| C．at；at | D．in；at |
________by his words，all the audience clapped now and then until his address came to an end.
| A．Impressed | B．Impressing |
| C．To be impressed | D．Having impressed |
The train went round and was soon________．
| A．out of order | B．out of sight |
| C．lose sight of | D．catch sight of |