It’s standard practice for a company like this one______ a security officer.
| A．employed | B．being employed |
| C．to employ | D．employs |
At the computer operation test, one is supposed to stay at his own machine, keep his eyes on his screen, ______ to anyone.
| A．and not to speak | B．but could not speak |
| C．instead of speaking | D．or rather speak |
______ as the “First Lady of Speech”, Dr Lillian Glass is recognized as one of the world’s leading experts on communication skills.
| A．Knowing | B．Having known | C．Known | D．To be known |
—What happened to you on your way back to the hotel last night ?
—I lost my way in complete darkness and ,__________ things worse , it began to pour .
| A．making | B．to make | C．having made | D．made |
Comparison may make something appear more beautiful than it is when _________ alone.
| A．to see | B．seeing | C．is seen | D．seen |
—Where is our English teacher?
—She is in the classroom, _____ the exercises _________ the students have done at home.
| A．explaining; / | B．explaining; for |
| C．explained; to | D．explained; from |