A.Expert Advice: It Pays to be Kind rather than to be Right
B.It's Worth Listening to Experts for a Happy Marriage
C.Marriage Experiment: It's Better to be Right than Happy
D.It Makes Sense to Avoid Marriage Conflicts

A.mobile phones
B.lighters
C.pencils
D.razors

A.factories
B.company
C.invention
D.range

A.accurate
B.traditional
C.sharp
D.useful

A.a cheap pen could be designed with great commercial success
B.a firm was not established to produce high-quality ballpoint pens
C.most people could not afford such a firmly established invention
D.the ballpoint pens available were expensive despite their poor quality

A.From Mobile Devices to Ballpoint Pens
B.From a Luxury Item to an Everyday Object
C.Ballpoint Pen's New Design - For Better or Worse?
D.Biros - A Business Model in Britain

A.From Mobile Devices to Ballpoint Pens
B.From a Luxury Item to an Everyday Object
C.Ballpoint Pen's New Design - For Better or Worse?
D.Biros - A Business Model in Britain

A.arises
B.boosts
C.mounts
D.surges

A.every
B.another
C.much
D.many

A.whom
B.which
C.where
D.when