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am, / the, / the, a an, the
sons daughters twins children
bbEe和BBee bbEE和Bbee bbEe和Bbee bbee和Bbee
has been to has come to has been in has arrived in
the other other the others others
will be would be had been is
bbEe和BBee bbEE和Bbee bbEe和Bbee bbee和Bbee
strong stronger the stronger the strongest
bbEe和BBee bbEE和Bbee bbEe和Bbee bbee和Bbee
bbEe×Bbee bbEE×Bbee bbee×Bbee bbEe×BBee
bbEe×Bbee bbEE×Bbee bbee×Bbee bbEe×BBee
Three-fourths; is Three-fourths; are Three-fourth; are Three-fourth; is
bbEe×bbee bbEE×Bbee bbee×Bbee bbEe×BBee
bbee和Bbee bbEE和Bbee bbEe和Bbee bbEe和BBee
bbEe×Bbee bbEE×Bbee bbee×Bbee bbEe×BBee
has taught is teaching taught teaches
How often How long How soon How much
Three-fourths; is Three-fourths; are Three-fourth; is Three-fourth; are