stop working (for a machine, etc) => A. break up; B. break down; C. break off; D. break over
B. break down
verb of "explanation" is...
explain
"introduction" part of speech is...
noun
noun of "appear" is...
appearance
produce sth such as smell or heat => A. give off; B. give up; C. give in; D. give for
A. give off
connect by phone => A. put over; B. put up; C. put through; D. put down
C. put through
synonym of "false" is...
artificial
"observer" part of speech is...
noun
verb of "discovery" is...
discover
Synonym of "new" is...
modern
adverb of "important" is...
importantly
discover information => A. find in; B. find over; C. find for; D. find out
D. find out
synonym of "method" is...
way
Synonym of "award" is...
reward
"psychologically" part of speech is...
adverb