I
am
a
boy.
I
am
eating.
He
went
to
the
park
yesterday.
I
was
eating
this
time.
I
will
go
to
the
park
tomorrow.
Have
you
ever
been
to
Shanghai？
Before
I
came
back
home，he
had
done
his
homework.
基本时态只有7种呀？烦楼主指教另一种？
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024