Edison’stheory________tobecorrect.
A. turnedout
B. wasturnedout
C. turnedon
D. turnedoff
Softwaresalesinthenorthernpartofourcountryhave______by8%comparedwithlastyear.
A. faced
B. moved
C. increased
D. mounted
_______everyone'sgreatsurprise,theyhavebrokentheirpromises.
A. Of
B. In
C. To
D. For
________,thesemachinesshouldlastfortenyearsormore.
A. Inpart
B. Intheory
C. Inturn
D. Inplace