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are; are is; is are; is is; are
so; that not; but such; that too; to
important difficult proper exact
to get to get to to get get
As earthquakes are difficult to be predicted As earthquakes are difficult to predict Difficult as earthquakes are to predicted Difficult as earthquakes are to predict
long happy difficult short
important difficult proper exact
important difficult proper exact
short difficult long happy
are；are is；is are；is is：are
are；are is；is are；is is：are
:difficult, to answer difficult, answer easy, to answer easy, answer
to understand to be understood understood being understood
long happy difficult short
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