meaning of drain

[Igel]

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #99 "The Parliamentary Candidate (2)", question 2

Man's voice: Oh, good morning. I want to warn you about a bomb...
Henry: A bomb? Where? Hello! We've been ......... off. Operator! Operator! Operator!

(a) cut
(b) severed
(c) removed
(d) drained

English Language Proficiency Tests, Advanced Level

ESL/EFL Test #99 "The Parliamentary Candidate (2)", answer 2

Man's voice: Oh, good morning. I want to warn you about a bomb...
Henry: A bomb? Where? Hello! We've been cut off. Operator! Operator! Operator!

Correct answer: (a) cut
_________________________

what is drained?

Igel

[Conchita]

drain (REMOVE LIQUID)
verb [I or T]
If you drain something, you remove the liquid from it, usually by pouring it away or allowing it to flow away, and if something drains, liquid flows away or out of it:
Drain the pasta thoroughly.
We drained the pond and filled it with fresh water.
Drain (off) any liquid that is left in the rice.
Don't bother drying the pans - just leave them to drain.

http://dictionary.cambridge.org/results.asp?searchword=drained