Question

They can play basketball very well 同义句转换

Answer 1

They
are
able
to
play
basketball
very
well.
情态动词can相当于be
able
to，但后者时态比较多，比如一般将来时与过去将来时，一定是will
be
able
to，would
be
able
to，现在完成时和过去完成时是have/has
been
able
to和had
been
able
to，所以，当直接引语情态动词为could(can的过去式)，而引述动词又是过去时时，这里的could要变成had
been
able
to，比如:
James
said,
"I'm
sorry
thatI
couldn't
fix
your
computer
yesterday."
James
told
me
that
he
was
sorry
that
he
hadn't
been
able
to
fix
my
computer
the
day
before.
希望我能帮助你解疑释惑。